Partitioning in Aqueous Two-Phase Systems. A comprehensive bibliography in three parts: (1956-1984; 1985-1990; 1991-present)

Compiled by Harry Walter

PART I: 1956-1984

PART II: 1985-1990

PART III: 1991-present

Index

  • 1991
  • 1992
  • 1993
  • 1994
  • 1995
  • 1996

    1991

    Abbott, N.L., Blankschtein, D., and Hatton, T.A. (1991). Protein partitioning in two-phase
    aqueous polymer systems:  1. Novel physical pictures and a scaling-thermodynamic formulation.
    Macromolecules 24, 4334-4348. 
    
    Agalidis, I. and Reiss-Husson, F. (1991). Resolution of Rhodocyclus gelatinosus
    photoreceptor unit components by temperature-induced phase separation in the presence of
    decyltetraoxyethylene. Biochem. Biophys. Res. Commun. 177, 1107-1112.
    
    Albertsson, P.-Å., Andreasson, E., Svensson, P., and Yu, S-G. (1991). Localization of
    cytochrome f in the thylakoid membrane:  evidence for multiple domains.  Biochim.
    Biophys. Acta 1098, 90-94.
    
    Anderson, R.J., Delgado, C., Fisher, D., Cunningham, J.M., and Francis, G.E. (1991). A method
    for the purification of DNA/protein complexes applied to DNA topoisomerases II cleavage sites.
    Anal. Biochem. 193, 101-111.
    
    Arnold, F.H. (1991). Metal-affinity separations:  A new dimension in protein bioprocessing.
    BioTechnology 9, 151-156.
    
    Arnold, F.H. and Haymore, B.L. (1991). Engineered metal-binding proteins:  Purification to
    protein folding.  Science 252, 1796-1797.
    
    Arregui, M.P., Pérez-Martos, A., and López-Pérez, M.J. (1991).
    Detection of barbiturate-induced surface changes in cerebrocortical synaptosomes by phase
    partitioning in an aqueous two-phase system. Biosci. Rep. 11, 181-188.
    
    Asenjo, J.A., Franco, T., Andrews, A.T., and Andrews, B.A. (1991). Affinity separation of
    proteins in aqueous two-phase systems.   In Biologicals from Recombinant Microorganisms
    and Animal Cells:  Production and Recovery (M.D. White, S. Reuveny, and A.
    Shafferman, eds.), pp. 439-454. VCH Publishers, Mannheim, Germany.
    
    Askerlund, P. and Larsson, C. (1991). Transmembrane electron transport in plasma membrane
    vesicles loaded with an NADH-generating system or ascorbate. Plant Physiol.
    96, 1178-1184.
    
    Bates, F.S. (1991). Polymer-polymer phase behavior. Science 251, 898-905.
    
    Birkenmeier, G. and Kopperschläger, G. (1991). Dye-promoted precipitation of serum
    proteins. Mechanism and application. J. Biotechnol. 21, 93-108.
    
    Birkenmeier, G., Vijayalakshmi, M.A., Stigbrand, T., and Kopperschläger, G. (1991).
    Immobilized metal ion affinity partitioning, a method combining metal-protein interaction and
    partitioning of proteins in aqueous two-phase systems. J. Chromatogr. 539,
    267-277.
    
    Boland, M.J., Hesselink, P.G.M., Papamichael, N., and Hustedt, H. (1991). Extractive
    purification of enzymes from animal tissue using aqueous two phase systems:  Pilot scale studies.
    J. Biotechnol. 19, 19-34.
    
    Brightman, A.O., Zhu, X.Z., and Morré, D.J. (1991). Activation of plasma membrane
    NADH oxidase activity by products of phospholipase A. Plant Physiol. 96,
    1314-1320.
    
    Broide, M.L., Berland, C.R., Pande, J., Ogun, O.O., and Benedek, G.B. (1991). Binary-liquid
    phase separation of lens protein solutions. Proc. Natl. Acad. Sci. USA 88,
    5660-5664.
    
    Cartwright, E.J., Cowin, A., and Sharpe, P.T. (1991). Surface heterogeneity of bovine sperm
    revealed by aqueous two-phase partition. Biosci. Rep. 11, 265-273.
    
    Cascone, O., Andrews, B.A., and Asenjo, J.A. (1991). Partitioning and purification of thaumatin
    in aqueous two-phase systems. Enzyme Microb. Technol. 13, 629-635.
    
    Cebrián-Pérez, J.A., Muiño-Blanco, M.T., and Johansson, G. (1991).
    Heterogeneity of synaptosomal membrane preparations from different regions of calf brain studied
    by partitioning and counter-current distribution. Int. J. Biochem. 23,
    1491-1495.
    
    Cherayil, B.J. (1991). Phase separation in polymer solutions near the critical point. J. Chem.
    Phys. 95, 2135-2142.
    
    Chung, B.H. and Arnold, F.H. (1991). Metal-affinity partitioning of phosphoproteins in
    PEG/dextran two-phase systems. Biotechnol. Lett. 13, 615-620.
    
    Cole, K.D. (1991). Purification of plasmid and high molecular mass DNA using PEG-salt
    two-phase extraction. BioTechniques 11, 18-24.
    
    Corbatón, V., Muiño, M.T., Fernández-Silva, P.,
    López-Pérez, M.J., and Montoya, J. (1991). Estimation of the chloramphenicol
    and cycloheximide inhibition of protein synthesis in brain cholinergic synaptosomes. Brain
    Res. 543, 351-353.
    
    Craig, D. Q. M. and Newton, J.M. (1991). Characterisation of polyethylene glycols using
    differential scanning calorimetry. Int. J. Pharm. 74, 33-41.
    
    Crawford, N., Eggleton, P., and Fisher, D. (1991). Population heterogeneity in blood neutrophils
    fractionated by continuous flow electrophoresis and by partitioning in aqueous polymer two-phase
    systems.   In Cell Separation Science and Technology. ACS Symposium Series, Vol.
    464 (D.S. Kompala and P. Todd, eds.), pp. 190-205. American Chemical Society, Washington,
    D.C.
    
    Delgado, C., Anderson, R.J., Francis, G.E., and Fisher, D. (1991). Separation of cell mixtures by
    immunoaffinity cell partitioning:  Strategies for low abundance cells. Anal. Biochem.
    192, 322-328.
    
    Delrieu, M.J. and Rosengard, F. (1991). Changes in the S0 and S1
    properties during dark adaptation in oxygen-evolving Photosystem-II-enriched thylakoid
    membranes. Biochim. Biophys. Acta 1057, 78-88.
    
    Dhugga, K.S. and Ray, P.M. (1991). A 55 kDa plasma membrane-associated polypeptide is
    involved in β-1,3-glucan synthase activity in pea tissue. FEBS Lett.
    278, 283-286.
    
    Eiteman, M.A. and Gainer, J.L. (1991). Partition of isomeric dipeptides in poly(ethylene
    glycol)/magnesium sulfate aqueous two-phase systems. Biochim. Biophys. Acta
    1073, 451-455.
    
    Eiteman, M.A. and Gainer, J.L. (1991). Predicting partition coefficients in polyethylene
    glycol-potassium phosphate aqueous two-phase systems. J. Chromatogr.
    586, 341-346.
    
    Eiteman, M.A. and Gainer, J.L. (1991). A model for the prediction of partition coefficients in
    aqueous two-phase systems. Bioseparation 2, 31-41.
    
    Eiteman, M.A. and Gainer, J.L. (1991). The effect of the pH difference between phases on the
    partitioning in poly(ethylene glycol)-phosphate aqueous two-phase systems. Chem. Eng.
    Commun. 105, 171-183.
    
    Eiteman, M.A. and Gainer, J.L. (1991). Prediction of partition coefficients for peptides in aqueous
    two-phase systems.  In Chromatographic and Membrane Processes in Biotechnology
    (C.A. Costa and J.S. Cabral, eds.) pp. 323-333. Kluwer Academic Publishers, Dordrecht.
    
    Elling, L. and Kula, M.-R. (1991). Immunoaffinity partitioning--Synthesis and use of polyethylene
    glycol-oxirane for coupling to BSA and monoclonal antibodies. Biotechnol. Appl.
    Biochem. 13, 354-362. 
    
    Elling, L., Kula, M.-R., Hadas, E., and Katchalski-Katzir, E. (1991). Partition of free and
    monoclonal-antibody-bound horseradish peroxidase in a two-phase aqueous polymer
    system--Novel procedure for the determination of the apparent binding constant of monoclonal
    antibody to horseradish peroxidase. Anal. Biochem. 192, 74-77.
    
    Enríquez, J.A., López-Pérez, M.J., and Montoya, J. (1991). Saturation of
    processing of the newly synthesized ribosomal RNA in isolated brain mitochondria. FEBS
    Lett. 280, 32-36.
    
    Fisher, D., Delgado, C., Morrison, J., Young, G., and Tilcock, C. (1991). Pegylation of
    membrane surfaces.  In Cell and Model Membrane  Interactions (S. Ohki, ed.) p.
    47-62. Plenum Press, New York.
    
    Fisher, D., Raymond, F.D., and Walter, H. (1991). Factors in cell separation by partitioning in
    two-polymer aqueous phase systems.  In Cell Separation Science and Technology,
    ACS Symposium Series, Vol. 464 (D.S. Kompala and P. Todd, eds.), pp. 175-188, American
    Chemical Society, Washington, D.C.
    
    Flanagan, J.A., Huddleston, J.G., and Lyddiatt, A. (1991). Application of aqueous two-phase
    partition in PEG-phosphate systems:  Design and implementation of a prototype for recovery of
    bulk protein fractions from waste brewer's yeast. Bioseparation 2, 43-61.
    
    Fletcher, J. and Wijetunga, C. (1991). Serological characterization of surface proteins of
    Spiroplasma citri. Can. J. Microbiol. 37, 28-33.
    
    Forciniti, D., Hall, C.K., and Kula, M.-R. (1991).  Influence of polymer molecular weight and
    temperature on phase composition in aqueous two-phase system. Fluid Phase
    Equilibria 61, 243-262.
    
    Forciniti, D., Hall, C.K., and Kula, M.-R. (1991). Analysis of polymer molecular weight
    distributions in aqueous two-phase systems. J. Biotechnol. 20, 151-162.
    
    Forciniti, D., Hall, C.K., and Kula, M.-R. (1991). Protein partitioning at the isoelectric point: 
    Influence of polymer molecular weight and concentration and protein size. Biotechnol.
    Bioeng. 38, 986-994. 
    
    Forciniti, D., Hall, C.K., and Kula, M.-R. (1991). Temperature dependence of the partition
    coefficient of proteins in aqueous two-phase systems. Bioseparation 2,
    115-128. 
    
    Fredrikson, K., Kjellbom, P., and Larsson, C. (1991). Isolation and polypeptide composition of
    1,3-β-glucan synthase from plasma membranes of Brassica oleracea. Physiol.
    Plant. 81, 289-294.
    
    Ganong, B.R. and Delmore, J.P. (1991). Phase separation temperatures of mixtures of Triton
    X-114 and Triton X-45:  Application to protein separation. Anal. Biochem.
    193, 35-37.
    
    Giuliano, K.A. (1991). Aqueous two-phase protein partitioning using textile dyes as affinity
    ligands. Anal. Biochem. 197, 333-339.
    
    Godbole, P.P., Tsai, R.-S., and Clark, W.M. (1991). Affinity partitioning of vancomycin.
    Biotechnol. Bioeng. 38, 535-544.
    
    Goubran-Botros, H., Birkenmeier, G., Otto, A., Kopperschläger, G., and Vijayalakshmi,
    M.A. (1991). Immobilized metal ion affinity partitioning of cells in aqueous two-phase systems: 
    Erythrocytes as a model. Biochim. Biophys. Acta 1074, 69-73.
    
    Greve, A. and Kula, M.-R. (1991). Phase diagrams of new aqueous phase systems composed of
    aliphatic alcohols, salts and water. Fluid Phase Equilibria 62, 53-63.
    
    Greve, A. and Kula, M.-R. (1991). Cost structure and estimation for the recycling of salt in a
    protein extraction process. Bioprocess Engin. 6, 173-177.
    
    Greve, A. and Kula, M.-R. (1991). Recycling of salt from the primary bottom phase of a protein
    extraction process. J. Chem. Technol. Biotechnol. 50, 27-42.
    
    Harris, P.A., Karlström, G., and Tjerneld, F. (1991). Enzyme purification using
    temperature-induced phase formation. Bioseparation 2, 237-246.
    
    Hart, R.A. and Bailey, J.E. (1991). Purification and aqueous two-phase partitioning properties of
    recombinant Vitreoscilla hemoglobin. Enzyme Microb. Technol. 13,
    788-795.
    
    Hartounian, H. and Sandler, S.I. (1991). Polymer fractionation in aqueous two-phase polymer
    systems. Biotechnol. Prog. 7, 279-282.
    
    Harvey, A.H. (1991). Phase equilibria and critical lines in model water/salt mixtures. J.
    Chem. Phys. 95, 479-484.
    
    Haynes, C.A., Carson, J., Blanch, H.W., and Prausnitz, J.M. (1991). Electrostatic potentials and
    protein partitioning in aqueous two-phase systems. AIChE J. 37, 1401-1409.
    
    Hooper, N.M. and Bashir, A. (1991). Glycosyl-phosphatidylinositol-anchored membrane proteins
    can be distinguished from transmembrane polypeptide-anchored proteins by differential
    solubilization and temperature-induced phase separation in Triton X-114. Biochem.
    J. 280, 745-751.
    
    Hubert, P., Mathis, R., and Dellacherie, E. (1991). Polymer ligands for mild hydrophobic
    interaction chromatography- principles, achievements and future trends. J.
    Chromatogr. 539, 297-306.
    
    Huddleston, J.G., Ottomar, K.W., Ngonyani, D.M., and Lyddiatt, A. (1991).  Influence of system
    and molecular parameters upon fractionation of intracellular proteins from Saccharomyces
    by aqueous two-phase partition. Enzyme Microb. Technol. 13, 24-32.
    
    Huddleston, J.G., Veide, A., Köhler, K., Flanagan, J., Enfors, S.-O., and Lyddiatt, A.
    (1991). The molecular basis of partitioning in aqueous two-phase systems.
    TIBTECH 9, 381-388.
    
    Ito, Y. (1991). Recent advances in counter-current chromatography. J. Chromatogr.
    538, 3-25.
    
    Jimeno, P., Garcia-Perez, A.I., Luque, J., and Pinilla, M. (1991). Changes in glycolytic enzyme
    activities in aging erythrocytes fractionated by counter-current distribution in aqueous polymer
    two-phase systems. Biochem. J. 279, 237-243.
    
    Johansson, G. and Joelsson, M. (1991). Protein-ligand interactions studied on bovine serum
    albumin with free and polymer-bound Cibacron blue F3G-A as ligand with reference to affinity
    partitioning. J. Chromatogr. 537, 219-233.
    
    Jordan, P. and Vilter, H. (1991). Extraction of proteins from material rich in anionic mucilages: 
    Partition and fractionation of vanadate-dependent bromoperoxidases from the brown algae
    Laminaria digitata and L. saccharina in aqueous polymer two-phase systems.
    Biochim. Biophys. Acta 1073, 98-106.
    
    Kirchberger, J., Kopperschläger, G., and Vijayalakshmi, M.A. (1991). Dye-ligand affinity
    partitioning of lactate dehydrogenase isoenzymes. J. Chromatogr. 557,
    325-334.
    
    Köhler, K., Ljungquist, C., Kondo, A., Veide, A., and Nilsson, B. (1991). Engineering
    proteins to enhance their partition coefficients in aqueous two-phase systems.
    BioTechnology 9, 642-646.
    
    Köhler, K., Veide, A., and Enfors, S.-O. (1991). Partitioning of β-galactosidase fusion
    proteins in PEG/potassium phosphate aqueous two-phase systems. Enzyme Microb.
    Technol. 13, 204-209.
    
    Kuboi, R., Tanaka, H., and Komasawa, I. (1991). Effect of salt addition on the hydrophobicities
    of the system and proteins in aqueous two-phase extraction systems. Kagaku Kogaka
    Ronbunshu 17, 67-74.
    
    Kula, M.-R., Elling, L., and Walsdorf, A. (1991).  Investigations of liquid-liquid partition
    chromatography (LLPC) of proteins. J. Chromatogr. 548, 3-12.
    
    Lu, M., Tjerneld, F., Johansson, G., and Albertsson, P.-Å. (1991). Preparation of benzoyl
    dextran and its use in aqueous two-phase systems. Bioseparation 2, 247-255.
    
    Luque, P., Márquez, J., Núñez de Castro, I., and Medina, M.A. (1991).
    Sodium-dependent L-serine transport in plasma membrane vesicles isolated from Ehrlich cells by
    two-phase compartmentation. J. Membr. Biol. 123, 247-254.
    
    Mathis, R., Hubert, P., and Dellacherie, E. (1991). Mild hydrophobic interaction chromatography: 
    Prediction of chromatographic behaviour by preliminary analysis by "partition between aqueous
    two-phase systems."  J. Chromatogr. 538, 456-461.
    
    Miheeva, L.M., Maximova, E.D., Aleschko-Ozhevskii, Yu.P., and Zaslavsky, B.Yu. (1991).
    Partitioning of alkali halides in aqueous dextran-Ficoll two-phase system. J. Solution
    Chem. 20, 607-611.
    
    Morré, D.J., Crane, F.L., Eriksson, L.C., Löw, H., and Morré, D.M.
    (1991). NADH oxidase of liver plasma membrane stimulated by diferric transferrin and neoplastic
    transformation induced by the carcinogen 2-acetylaminofluorene. Biochim. Biophys.
    Acta 1057, 140-146.
    
    Morré, D.J., Penel, C., Morré, D.M., Sandelius, A.S., Moreau, P., and Andersson,
    B. (1991). Cell-free transfer and sorting of membrane lipids in spinach.  Donor and acceptor
    specificity. Protoplasma 160, 49-64.
    
    Muiño-Blanco, M.T., Cebrián, J.A., Olde, B., and Johansson, G. (1991).
    Subfractions of membranes from calf brain synaptosomes obtained and studied by liquid-liquid
    partitioning. J. Chromatogr. 547, 79-87.
    
    Nichol, C.P. and Roufogalis, B.D. (1991).  Influence of associated lipid on the properties of
    purified bovine erythrocyte acetylcholinesterase. Biochem. Cell Biol. 69,
    154-162.
    
    Noguchi, T. and Morré, D.J. (1991). Membrane flow in plants:  Preparation and kinetics
    of labeling of plasma membranes from growing pollen tubes of tobacco.
    Protoplasma, in press.
    
    Obradors, N. and Aguilar, J. (1991). Efficient biodegradation of high-molecular-weight
    polyethylene glycols by pure cultures of Pseudomonas stutzeri. Appl. Environ.
    Microbiol. 57, 2383-2388.
    
    Olbe, M. and Sommarin, M. (1991). ATP-dependent Ca2+ transport in wheat root
    plasma membrane vesicles. Physiol. Plant. 83, 535-543.
    
    Olsson, H., Persson, A., and Jergil, B. (1991). Purification of liver membranes highly enriched in
    phosphatidylinositol kinase. Cell. Signal. 3, 353-359.
    
    Ortín, A., Cebrián-Pérez, J.A., López-Pérez, M.J., and
    Johansson, G. (1991). An aqueous hydroxypropylstarch-poly(ethylene glycol) two-phase system
    for extraction of α-lactalbumin and β-lactoglobulin from bovine whey.
    Bioseparation 2, 197-205.
    
    Ortín, A., López-Pérez, M.J., Muiño-Blanco, M.T., and
    Cebrián-Pérez, J.A. (1991). Extraction of xanthine oxidase from milk by
    counter-current distribution in aqueous two-phase system. J. Chromatogr.
    558, 357-367.
    
    Palmgren, M.G., Sommarin, M., Serrano, R., and Larsson, C. (1991). Identification of an
    autoinhibitory domain in the C-terminal region of the plant plasma membrane
    H+-ATPase. J. Biol. Chem. 266, 20470-20475.
    
    Papamichael, N. and Hustedt, H. (1991). Continuous aqueous phase extraction of proteins: 
    Automated on-line monitoring of fumarase activity and protein concentration. J. Chem.
    Technol. Biotechnol. 50, 457-467.
    
    Park, K.-M. and Wang, N.S. (1991). α-Amylase fermentation with Bacillus
    amyloliquefaciens in an aqueous two-phase system. Biotechnol. Prog. 7,
    439-444.
    
    Pathak, S.P., Sudha, S., Sawant, S.B., and Joshi, J.B. (1991). New salt-PEG systems for two
    phase aqueous extraction. Biochem. Eng. J. 46, B31-B34.
    
    Patil, T.A., Jafarabad, K.R., Sawant, S.B., and Joshi, J.B. (1991). Enzyme mass transfer
    coefficient in aqueous two phase system using a packed extraction column. Can. J. Chem.
    Eng. 69, 548-556.
    
    Patsavoudi, E., Hurel, C., and Matsas, R. (1991). Purification and characterization of
    neuron-specific surface antigen defined by monoclonal antibody BM88. J.
    Neurochem. 56, 782-788.
    
    Persson, A., Johansson, B., Olsson, H., and Jergil, B. (1991). Purification of rat liver plasma
    membranes by wheat-germ- agglutinin affinity partitioning. Biochem. J. 273,
    173-177.
    
    Persson, I., Tjerneld, F., and Hahn-Hägerdal, B. (1991).  Influence of cultivation conditions
    on the production of cellulolytic enzymes with Trichoderma reesei Rutgers C30 in
    aqueous two-phase systems. Appl. Biochem. Biotechnol. 27, 9-25.
    
    Persson, I., Stålbrand, H., Tjerneld, F., and Hahn-Hägerdal, B. (1991).
    Semicontinuous production of cellulolytic enzymes with Trichoderma reesei Rutgers C30
    in an aqueous two-phase system. Appl. Biochem. Biotechnol. 27, 27-36.
    
    Piculell, L., Nilsson, S., Falck, L., and Tjerneld, F. (1991). Phase separation in aqueous mixtures
    of similarly charged polyelectrolytes. Polym. Commun. 32, 158-160.
    
    Popello, I.A., Suchkov, V.V., Grinberg, V.Ya., and Tolstoguzov, V.B. (1991). Liquid/liquid
    phase equilibrium in globulin/salt/water systems. J. Sci. Food Agric. 54,
    239-244.
    
    Raghava Rao, K.S.M.S., Stewart, R.M., and Todd, P. (1991). Electrokinetic demixing of
    two-phase aqueous polymer systems.  II. Separation rates of polyethylene glycol-maltodextrin
    mixtures. Sep. Sci. Technol. 26, 257-267.
    
    Raghava Rao, K.S.M.S., Szlag, D.C., Sikdar, S.K., Sawant, S.B., and Joshi, J.B. (1991). Protein
    extraction in a spray column using a polyethylene glycol-maltodextrin two phase polymer system.
    Biochem. Eng. J. 46, B75-B81.
    
    Santos, R.A., Caldeira, J.C.G., Pinheiro, H.M., and Cabral, J.M.S. (1991). Steroid bioconversion
    in a novel aqueous two-phase system. Biotechnol. Lett. 13, 349-354.
    
    Sartore, L., Caliceti, P., Schiavon, O., Monfardini, C., and Veronese, F.M. (1991). Accurate
    evaluation method of the polymer content in monomethoxy(polyethylene glycol) modified
    proteins based on amino acid analysis. Appl. Biochem. Biotechnol. 31,
    213-222.
    
    Schütte, H., Papamichael, N., Paulsen, J., and Hustedt, H. (1991).  Integration of
    hydrophobic adsorption into protein purification schemes.  In Proc. Third  Int. Conf. on
    Fundamentals of Adsorption (A. Mersmann, ed.), DECHEMA, Frankfurt, Germany and
    Engineering Foundation, New York, New York.  In press.
    
    Semenova, M.G., Pavlovskaya, G.E., and Tolstoguzov, V.B. (1991). The factors affecting the
    compatibility of serum albumin and pectinate in aqueous medium. Carbohydr.
    Polymers 15, 367-385.
    
    Senior, J., Delgado, C., Fisher, D., Tilcock, C., and Gregoriadis, G. (1991).  Influence of surface
    hydrophilicity of liposomes on their interaction with plasma protein and clearance from the
    circulation:  Studies with poly(ethylene glycol)-coated vesicles. Biochim. Biophys.
    Acta 1062, 77-82.
    
    Shanbhag, V.P., Johansson, G., and Ortin, A. (1991). Ca2+ and pH dependence of
    hydrophobicity of α-lactalbumin:  Affinity partitioning of proteins in aqueous two-phase
    systems containing poly(ethylene glycol) esters of fatty acids. Biochem.  Int.
    24, 439-450.
    
    Shibusawa, Y. and Ito, Y. (1991). Protein separation with aqueous-aqueous polymer systems by
    two types of counter-current chromatographs. J. Chromatogr. 550, 695-704.
    
    Sikdar, S.K., Cole, K.D., Stewart, R.M., Szlag, D.C., Todd, P., and Cabezas, H. (1991).
    Aqueous two-phase extraction in bioseparations:  An assessment. BioTechnology
    9, 253-256.
    
    Silva, A.B., Arrabaca, M.C., and Cabral, J.M.S. (1991). Extraction of crassulacean acid
    metabolism-phosphoenolpyruvate carboxylase using aqueous two phase systems. Plant
    Sci. 76, 29-34.
    
    Skrukrud, C.L. and Anderson, L.E. (1991). Chloroplast phosphoribulokinase associates with
    yeast phosphoriboisomerase in the presence of substrate. FEBS Lett. 280,
    259-261.
    
    Skrukrud, C.L., Gordon, I.M., Dorwin, S., Yuan, X.-H., Johansson, G., and Anderson, L.E.
    (1991). Purification and characterization of pea chloroplastic phosphoriboisomerase. Plant
    Physiol. 97, 730-735.
    
    Smith, O.M., Goodman, E.M., Greenebaum, B., and Tipnis, P. (1991). An increase in the
    negative surface charge of U937 cells exposed to a pulsed magnetic field.
    Bioelectromagnetics 12, 197-202.
    
    Strandberg, L., Köhler, K., and Enfors, S.-O. (1991). Large-scale fermentation and
    purification of a recombinant protein from Escherichia coli. Process
    Biochem. 26, 225-234.
    
    Suh, S.-S., Haymore, B.L., and Arnold, F.H. (1991). Characterization of His-X3-His sites in
    α-helices of synthetic metal-binding bovine somatotropin. Protein Eng.
    4, 301-305.
    
    Svensson, P., Andreasson, E., and Albertsson, P.-Å. (1991). Heterogeneity among
    Photosystem I. Biochim. Biophys. Acta 1060, 45-50.
    
    Terstappen, G.C. and Kula, M.-R. (1991). Selective extraction and quantitation of
    polyoxyethylene detergents and its application in protein determination. Anal. Lett.
    23, 2175-2193.
    
    Tilcock, C., Eastman, S., and Fisher, D. (1991). Determination of lipid asymmetry and exchange
    in model membrane systems.  In Cell and Model Membrane  Interactions (S. Ohki,
    ed.) p. 1-14. Plenum Press, New York.
    
    Tjerneld, F., Persson, I., and Lee, J.M. (1991). Enzymatic cellulose hydrolysis in an attrition
    bioreactor combined with an aqueous two-phase system. Biotechnol. Bioeng.
    37, 876-882.
    
    Tjus, S.E. and Andersson, B. (1991). Extrinsic polypeptides of spinach photosystem I.
    Photosynth. Res. 27, 209-219.
    
    Todd, P. and Pretlow, T.G. (1991). Separation of living cells.  In Cell Separation Science
    and Technology, ACS Symposium Series, Vol. 464 (D.S. Kompala and P. Todd, eds.), pp.
    1-24. American Chemical Society, Washington, D.C.
    
    Todd, R., Van Dam, M.E., Casimiro, D., Haymore, B.L., and Arnold, F.H. (1991).
    Cu(II)-binding properties of a cytochrome c with a synthetic metal-binding site:  His-X3-His in an
    α-helix. Proteins:  Struct. Funct. Gen. 10, 156-161.
    
    Tolstoguzov, V.B. (1991). Functional properties of food proteins and role of
    protein-polysaccharide interaction. Food Hydrocolloids 4, 429-468.
    
    Tolstoguzov, V.B. (1991). Thermoplastic extrusion and the structure of extrudates. Food
    Technol.  Int. 71-75.
    
    Ugalde, U.O. (1991). Preparation of highly purified plasma membrane vesicles of controlled
    orientation from Penicillium cyclopium. Mycol. Res. 95, 1303-1307.
    
    Utracki, L.A., ed. (1991). Two-Phase Polymer Systems, Progress in Polymer
    Processing series (Utracki, L.A., series ed.). Hanser, Munich, Germany.
    
    Vachon, V., Pouliot, J.-F., Laprade, R., and Béliveau, R. (1991). Fractionation of renal
    brush border membrane proteins with Triton X-114 phase partitioning. Biochem. Cell
    Biol. 69, 206-211.
    
    Vlatakis, G. and Bouriotis, V. (1991). Affinity partitioning of restriction endonucleases: 
    Application to the purification of EcoR I and EcoR V. J. Chromatogr. 538,
    311-321.
    
    Walsdorf, A. and Kula, M.-R. (1991). Properties of supports on partition chromatography of
    proteins. J. Chromatogr. 542, 55-64.
    
    Walter, H. and Johansson, G. (1991). Aqueous two-phase systems.  In Encyclopedia of
    Human Biology, Vol. 1 (R. Dulbecco, ed.), pp. 355-364. Academic Press, San Diego,
    California.
    
    Walter, H., Johansson, G., and Brooks, D.E. (1991). Partitioning in aqueous two-phase systems: 
    Recent results. Anal. Biochem. 197, 1-18. 
    
    Walter, H., Krob, E.J., and Wollenberger, L. (1991). Partitioning of cells in dextran-poly(ethylene
    glycol) aqueous phase systems:  A study of settling time, vessel geometry and sedimentation
    effects on the efficiency of separation. J. Chromatogr. 542, 397-411.
    
    Werck-Reichhart, D., Benveniste, I., Teutsch, H., Durst, F., and Gabriac, B. (1991). Glycerol
    allows low-temperature phase separation of membrane proteins solubilized in Triton X-114: 
    Application to the purification of plant cytochromes P-450 and b5. Anal.
    Biochem. 197, 125-131.
    
    Widell, S. and Sommarin, M. (1991). Purification of endoplasmic reticulum from wheat roots and
    shoots (Triticum aestivum). Comparison of their blue light-sensitive redox components
    with those of highly purified plasma membrane. Physiol. Plant. 82, 9-18.
    
    Winzor, D.J. (1991). Evaluation of antigen-antibody affinity constants by partition equilibrium
    studies with a two-phase aqueous polymer system:  A more rigorous analysis. Biochim.
    Biophys. Acta 1115, 141-144.
    
    Wuenschell, G.E., Wen, E., Todd, R., and Arnold, F.H. (1991). Chiral copper-chelate complexes
    alter selectivities in metal affinity protein partitioning. J. Chromatogr. 543,
    345-354.
    
    Yamazaki, M., Ohshika, M., and Ito, T. (1991). Phase separation of Triton X-100 micelle
    solution induced by osmotic stress. Biochim. Biophys. Acta 1063, 175-177.
    
    Zaslavsky, B.Yu., Borovskaya, A.A., Gulaeva, N.D., and Miheeva, L.M. (1991). Partitioning in
    aqueous two-phase systems as a method of estimation of the relative hydrophobicity of solutions.
    J. Chem. Soc., Faraday Trans. 87, 137-140.
    
    Zaslavsky, B.Yu., Borovskaya, A.A., Gulaeva, N.D., and Miheeva, L.M. (1991).  Influence of
    ionic and polymer composition on the properties of the phases of aqueous two-phase systems
    formed by non-ionic polymers. J. Chem. Soc., Faraday Trans. 87, 141-145.
    
    Zaslavsky, B.Yu., Miheeva, L.M., Gulaeva, N.D., Borovskaya, A.A., Rubtsov, M.I., Lukatskaya,
    L.L., and Mchedlov-Petrossyan, N.O. (1991).  Influence of non-ionic polymers on solvent
    properties of water as detected by studies of acid-base equilibria of sulphonephthalein and
    fluorescein dyes. J. Chem. Soc., Faraday Trans. 87, 931-938.
    
    Zutautas, V., Baskeviciute, B., and Pesliakas, H. (1991). Affinity partitioning of enzymes in
    aqueous two-phase systems containing dyes and their Cu(II) complexes bound to poly(ethylene
    glycol). Submitted for publication.
    
    

    1992

    Abbott, N.L., Blankschtein, D., and Hatton, T.A. (1992). Protein partitioning in two-phase aqueous polymer systems. 2. On the free energy of mixing globular colloids and flexible polymers. Macromolecules 25, 3917-3931. Abbott, N.L., Blankschtein, D., and Hatton, T.A. (1992). Protein partitioning in two-phase aqueous polymer systems. 3. A neutron scattering investigation of the polymer solution structure and protein-polymer interactions. Macromolecules 25, 3933-3941. Abbott, N.L., Blankschtein, D., and Hatton, T.A. (1992). Protein partitioning in two-phase aqueous polymer systems. 4. Proteins in solutions of entangled polymers. Macromolecules 25, 5192-5200. Albertsson, P.-Å., Andreasson, E., Svensson, P., and Yu, S-G.(1992). The domains of the plant thylakoid membrane. In Trends in Photosynthesis Research (J. Barber, M.G. Guerrero, and H. Medrano, eds.) pp. 45-57. Intercept, Andover, Hampshire, U.K. Alred, P.A., Johansson, G., and Tjerneld, F. (1992). Interactions in affinity partition studied using fluorescence spectroscopy. Anal. Biochem. 205, 351-358. Alred, P.A., Tjerneld, F., Kozlowski, A., and Harris, J.M. (1992). Synthesis of dye conjugates of ethylene oxide-propylene oxide copolymers and application in temperature-induced phase partitioning. Bioseparation 2, 363-373. Andjus, P.R. and Beljanski, M. (1992). Isolation of presumptive plasma membranes from a characean alga. Plant Sci. 82, 187-192. Askerlund, P. and Evans, D.E. (1992). Reconstitution and characterization of a calmodulin-stimulated Ca2+-pumping ATPase purified from Brassica oleracea L. Plant Physiol. 100, 1670-1681. Böhler, T., Linderkamp, O., Leo, A., Wingen, A.-M., and Schärer, K. (1992). Increased aggregation with normal surface charge and deformability of red blood cells in children with nephrotic syndrome. Clin. Nephrol. 38, 119-124. Böttger, M., Barr, R., Döring, O., Crane, F.L., Brightman, A., and Morré, D.J. (1992). The effect of calcium and calmodulin inhibitors on NADH oxidation by isolated plasma membrane vesicles preloaded with NADH. Plant Sci. 87, 39-44. Bradley, M.E., Lambert, R.W., Lee, L.M., and Mircheff, A.K. (1992). Isolation and subcellular fractionation analysis of acini from rabbit lacrimal glands. Invest. Ophthalmol. Vis. Sci. 33, 2951-2965. Brooks, D.E., Van Alstine, J.M., Sharp, K.A., and Stocks, S.J. (1992). PEG-derivatized ligands with hydrophobic and immunological specificity: Applications in cell separation. In Poly(Ethylene Glycol) Chemistry: Biotechnical and Biomedical Applications (J.M. Harris, ed.) p. 57-71. Plenum Press, New York, New York. Burczyk, J. and Hyrc, K. (1992). Separation effects of pH on Chlorella cells of different strains in a two phase system. J. Plant Physiol. 140, 66-69. Cabezas, H. and Kabiri-Badr, M. (1992). Thermodynamics of aqueous mixtures of salts and polymers. In Frontiers in Bioprocessing II (P. Todd, S. K. Sikdar, and M. Bier, eds.) p. 380-391. ACS Books, American Chemical Society, Washington, D.C. Carlberg, I., Bingsmark, S., Vennigerholz, F., Larsson, U.K., and Andersson, B. (1992). Low temperature effects on thylakoid protein phosphorylation and membrane dynamics. Biochim. Biophys. Acta 1099, 111-117. Carnelli, A., De Michelis, M.I., and Rasi-Caldogno, F. (1992). Plasma membrane Ca-ATPase of radish seedlings. Plant Physiol. 98, 1196-1201. Cartwright, E.J., Harrington, P., Norbury, L., Leeming, G., and Sharpe, P.T. (1992). Surface heterogeneity of rat sperm during maturation. Biosci. Rep. 12, 57-67. Chang, H.N., Lee, Y.-H., and Lee, C.Y. (1992). Continuous production of 6-APA in an aqueous two-phase system. Ann. NY Acad. Sci. 672, 643-648. Che, F.-S., Kasamo, K., Fukuchi, N., Isogai, A., and Suzuki, A. (1992). Bacterial phytotoxins, syringomycin, syringostatin and syringotoxin, exert their effect on the plasma membrane H+-ATPase partly by a detergent-like action and partly by inhibition of the enzyme. Physiol. Plant. 86, 518-524. Chen, J.-P. (1992). Partitioning and separation of α-lactalbumin and β-lactoglobulin in PEG/potassium phosphate aqueous two-phase systems. J. Ferment. Bioeng. 73, 140-147. Cherayil, B.J. (1992). Phase separation in solutions of binary polymer mixtures. J. Chem. Phys. 96, 9173-9179. Clark, J.I. and Steele, J.E. (1992). Phase-separation inhibitors and prevention of selenite cataract. Proc. Natl. Acad. Sci. USA 89, 1720-1724. Clark, W.M. (1992). Electrophoresis-enhanced extractive separation. Chemtech 22, 425-429. Cole, K.D.(1992). Salt-PEG two-phase aqueous systems to purify proteins and nucleic acid mixtures. In Frontiers in Bioprocessing II (P. Todd, S.K. Sikdar, and M. Bier, eds.) p. 340-351. ACS Conference Proceedings Series, American Chemical Society, Washington, D.C. Cole, K.D. (1992). Purification of soybean low-molecular mass protease inhibitors using aqueous two-phase extraction and polyethylene glycol precipitation. In New Developments in Bioseparation, AIChE Symposium Series, No. 290, Vol. 88 (M.M. Ataii and S.K. Sikdar, eds.) p. 89-97. American Institute of Chemical Engineers, New York, NY. Cunningham-Rundles, C., Zhuo, Z., Griffith, B., and Keenan, J. (1992). Biological activities of polyethylene-glycol immunoglobulin conjugates. Resistance to enzymatic degradation. J. Immunol. Methods 152, 177-190. Day, D.F. and Kim, D. (1992). A novel process for the production of dextrans of selected molecular sizes. Ann. NY Acad. Sci. 672, 573-576. Delgado, C., Sancho, P., Mendieta, J., and Luque, J. (1992). Ligand-receptor interactions in affinity cell partitioning: Studies with transferrin covalently linked to monomethoxy-poly(ethylene glycol) and rat reticulocytes. J. Chromatogr. 594, 97-103. Dentler, W.L. (1992). Identification of Tetrahymena ciliary surface proteins labeled with sulfosuccinimidyl 6-(biotinamido) hexanoate and concanavalin A and fractionated with Triton X-114. J. Protozool. 39, 368-378. Diamond, A.D. and Hsu, J.T. (1992). Correlation of polymer partitioning in aqueous two-phase systems. In New Developments in Bioseparation, AIChE Symposium Series, No. 290. Vol. 88 (M.M. Ataii and S.K. Sikdar, eds.) p. 105-111. American Institute of Chemical Engineers, New York, NY. Drouin, C.M. and Cooper, D.G. (1992). Biosurfactants and aqueous two-phase fermentation. Biotechnol. Bioeng. 40, 86-90. Eder-Colli, L., Briand, P.-A., and Dunant, Y. (1992). Membrane-bound choline acetyltransferase of the torpedo has characteristics of an integral membrane protein and can be solubilized by proteolysis. Brain Res. 573, 284-292. Egger, A., Morré, D.J., Selldén, G., and Sandelius, A.S. (1992). Isolation of plasma membrane fractions from green wheat leaves by free-flow electrophoresis or two-phase partition alone or in combination. Physiol. Plant. 84, 121-133. Eggleton, P., Crawford, N., and Fisher, D. (1992). Fractionation of human neutrophils into subpopulations by countercurrent distribution: surface charge and functional heterogeneity. Eur. J. Cell Biol. 57, 265-272. Eiteman, M.A. and Gainer, J.L. (1992). A correlation for predicting partition coefficients in aqueous two-phase systems. Sep. Sci. Technol. 27, 313-324. Faraday, C.D. and Spanswick, R.M. (1992). Maize root plasma membranes isolated by aqueous polymer two-phase partitioning: Assessment of residual tonoplast ATPase and pyrophosphatase activities. J. Exp. Bot. 43, 1583-1590. Feldwisch, J., Zettl, R., Hesse, F., Schell, J., and Palme, K. (1992). An auxin-binding protein is localized to the plasma membrane of maize coleoptile cells: Identification by photoaffinity labeling and purification of a 23-kDa polypeptide. Proc. Natl. Acad. Sci. USA 89, 475-479. Forciniti, D., Hall, C.K., and Kula, M.-R. (1992). Electrostatic effects on protein partitioning: Simultaneous effect of pH and polymer molecular weight. Chem. Eng. Sci. 47, 165-175. Fredrikson, K. and Larsson, C. (1992). Activators and inhibitors of the plant plasma membrane 1, 3-β-glucan synthase. Biochem. Soc. Trans. 20, 710-713. Fritsch, M., Leary, C.M., Furlow, J.D., Ahrens, H., Schuh, T.J., Mueller, G.C., and Gorski, J. (1992). A ligand-induced conformational change in the estrogen receptor is localized in the steroid binding domain. Biochemistry 31, 5303-5311. Gallet, O., Lemoine, R., Gaillard, C., Larsson, C., and Delrot, S. (1992). Selective inhibition of active uptake of sucrose into plasma membrane vesicles by polyclonal sera directed against a 42 kilodalton plasma membrane polypeptide. Plant Physiol. 98, 17-23. Garcia-Pérez, A.I., Sancho, P., Mendieta, J., and Luque, J. (1992). Rat bone marrow erythroid cell fractionation by countercurrent distribution in non-charge-sensitive two-phase systems. Biosci. Rep. 12, 77-85. Gaskell, M.J., Jermyn, K.A., Watts, D.J., Treffry, T.E., and Williams, J.G. (1992). Immuno-localization and separation of multiple prestalk cell types in Dictyostelium. Differentiation 51, 171-176. Giuliano, K.A. (1992). Chromatography of proteins on columns of polyvinylpolypyrrolidone using adsorbed textile dyes as affinity ligands. Anal. Biochem. 200, 370-375. Guan, Y., Wu, X.-Y., Treffry, T.E., and Lilley, T.H. (1992). Studies on the isolation of penicillin acylase from Escherichia coli by aqueous two-phase partitioning. Biotechnol. Bioeng. 40, 517-524. Hanly, J.G. and Hong, C. (1992). Antibodies to brain integral membrane proteins in systemic lupus erythematosus. J. Immunol. Methods 161, 107-118. Harris, J.M., ed. (1992). Poly(Ethylene Glycol) Chemistry: Biotechnical and Biomedical Applications Plenum, New York, New York. Harris, J.M. (1992). Introduction to biotechnical and biomedical applications of poly(ethylene glycol). In Poly(Ethylene Glycol) Chemistry: Biotechnical and Biomedical Applications (J.M. Harris, ed.) p. 1-14. Plenum Press, New York, New York. Harris, J.M., Sedaghat-Herati, M.R., Sather, P.J., Brooks, D.E., and Fyles, T.M. (1992). Synthesis of new poly(ethylene glycol) derivatives. In Poly(Ethylene Glycol) Chemistry: Biotechnical and Biomedical Applications (J.M. Harris, ed.) p. 371-381. Plenum Press, New York, New York. Harrison, R.A.P., Jacques, M.L., Minguez, M.L.P., and Miller, N.G.A. (1992). Behaviour of ejaculated spermatozoa from bull, boar and ram during thin-layer countercurrent partition in aqueous two-phase systems. J. Cell Sci. 102, 123-132. Jafarabad, K.R., Sawant, S.B., Joshi, J.B., and Sikdar, S.K. (1992). Enzyme and protein mass transfer coefficient in aqueous two-phase systems. I. Spray extraction columns. Chem. Eng. Sci. 47, 57-68. Jafarabad, K.R., Patil, T.A., Sawant, S.B., and Joshi, J.B. (1992). Enzyme and protein mass transfer coefficient in aqueous two-phase systems. II. York-Scheibel extraction columns. Chem. Eng. Sci. 47, 69-74. Johansson, G. (1992). Affinity partitioning in PEG-containing two-phase systems. In Poly(Ethylene Glycol) Chemistry: Biotechnical and Biomedical Applications (J. M. Harris, ed.) p. 73-84. Plenum Press, New York, New York. Johansson, G., Joelsson, M., and Bastos, M. (1992). Some physical measurements in the one-phase region of a water-dextran-poly(ethylene glycol) system. Polymer 33, 152-155. Kamihira, M., Kaul, R., and Mattiasson, B. (1992). Purification of recombinant protein A by aqueous two-phase extraction integrated with affinity precipitation. Biotechnol. Bioeng. 40, 1381-1387. Kim, Y.-J. and Weigand, W.A. (1992). Experimental analysis of a product inhibited fermentation in an aqueous two-phased system. Appl. Biochem. Biotechnol. 34-35, 419-430. Kirchberger, J., Domar, U., Kopperschläger, G., and Stigbrand, T. (1992). Interactions of human alkaline phosphatase isoenzymes with triazine dyes using affinity partitioning, affinity chromatography and difference spectroscopy. J. Chromatogr. 574, 237-245. Kirkland, J.J., Dilks, C.H.,Jr., and Rementer, S.W. (1992). Molecular weight distributions of water-soluble polymers by flow field-flow fractionation. Anal. Chem. 64, 1295-1303. Ladd, D.L. and Snow, R.A. (1992). Reagents for the preparation of chromophorically labeled polyethylene glycol-protein conjugates. Anal. Biochem. 210, 258-261. Larsson, M. and Mattiasson, B. (1992). Molecular weight distribution analysis of water-soluble polymers using aqueous two-phase systems. Ann. NY Acad. Sci. 672, 649-656. Lee, Y.W., Shibusawa, Y., Chen, F.T., Myers, J., Schooler, J.M., and Ito, Y. (1992). Purification of uridine phosphorylase from crude extracts of Escherichia coli employing high-speed countercurrent chromatography with an aqueous two-phase solvent system. J. Liquid Chromatogr. 15, 2831-2841. Lei, X. and Hsu, J.T. (1992). Separation of proteins using aqueous two-phase systems in eccentric multi-layer coil planet centrifuge. J. Liquid Chromatogr. 15, 2801-2817. Leser, E.W. and Asenjo, J.A. (1992). Rational design of purification processes for recombinant proteins. J. Chromatogr. 584, 43-57. Levine, M.L., Cabezas, H., and Bier, M. (1992). Transport of solutes across aqueous phase interfaces by electrophoresis. Mathematical modeling. J. Chromatogr. 607, 113-118. Lowe, C.R., Burton, S.J., Burton, N.P., Alderton, W.K., Pitts, J.M., and Thomas, J.A. (1992). Designer dyes: "Biomimetic" ligands for the purification of pharmaceutical proteins by affinity chromatography. Trends Biotechnol. 10, 442-448. Lundberg, S., Lehto, V.-P., and Backman, L. (1992). Characterization of calcium binding to spectrins. Biochemistry 31, 5665-5671. Malik, F., Delgado, C., Knüsli, C., Irvine, A.E., Fisher, D., and Francis, G.E. (1992). Polyethylene glycol (PEG)-modified granulocyte-macrophage colony-stimulating factor (GM-CSF) with conserved biological activity. Exp. Hematol. 20, 1028-1035. Maurousset, L., Lemoine, R., Gallet, O., Delrot, S., and Bonnemain, J.-L. (1992). Sulfur dioxide inhibits the sucrose carrier of the plant plasma membrane. Biochim. Biophys. Acta 1105, 230-236. Melin, P.-M., Pical, C., Jergil, B., and Sommarin, M. (1992). Polyphosphoinositide phospholipase C in wheat root plasma membranes. Partial purification and characterization. Biochim. Biophys. Acta 1123, 163-169. Mendieta, J. and Johansson, G. (1992). Affinity-mediated modification of electrical charge on a cell surface: A new approach to the affinity partitioning of biological particles. Anal. Biochem. 200, 280-285. Menge, U. (1992). Extraction of lipases in aqueous two-phase systems: The strategy for an optimization. In Frontiers in Bioprocessing II (P. Todd, S. K. Sikdar, and M. Bier, eds.) p. 331-339. ACS Books, American Chemical Society, Washington, D.C. Mircheff, A.K., Bowen, J.W., Yiu, S.C., and McDonough, A.A. (1992). Synthesis and translocation of Na,K-ATPase α and β subunits to the plasma membrane in MDCK cells. Am. J. Physiol. 262, C470-C483. Molochnikova, N.P., Shkinev, V.M., and Myasoedov, B.F. (1992). Two-phase aqueous systems based on poly(ethylene glycol) for extraction separation of actinides in various media. Solvent Extr. Ion Exch. 10, 697-712. Morré, D.J., Penel, C., Morré, D.M., Hellgren, L., Sandelius, A.S., and Greppin, H. (1992). ATP-dependent cell-free transfer of membrane lipids from nuclei to Golgi apparatus of germinating axes of garden pea. Protoplasma 170, 1-9. Mukataka, S., Haynes, C.A., Prausnitz, J.M., and Blanch, H.W. (1992). Extractive bioconversions in aqueous two-phase systems: Enzymatic hydrolysis of casein proteins. Biotechnol. Bioeng. 40, 195-206. Niehrs, C., Stinchcombe, J.C., and Huttner, W.B. (1992). Two membrane-bound forms of tyrosylprotein sulfotransferase as revealed by phase partitioning in Triton X-114. Eur. J. Cell Biol. 58, 35-43. Nikas, Y.J., Liu, C.-L., Srivastava, T., Abbott, N.L., and Blankschtein, D. (1992). Protein partitioning in two-phase aqueous nonionic micellar solutions. Macromolecules 25, 4797-4806. Ortín, A., Cebrián, J.A., and Johansson, G. (1992). Large scale extraction of α-lactalbumin and β-lactoglobulin from bovine whey by precipitation with polyethylene glycol and partitioning in aqueous two-phase systems. Prep. Biochem. 22, 53-66. Ortín, A., Muiño-Blanco, M.T., Calvo, M., López-Pérez, M.J., and Cebrián-Pérez, J.A. (1992). Extraction of β-lactoglobulin from bovine milk by affinity counter-current distribution in aqueous two-phase system. J. Dairy Sci. 75, 711-717. Pascual, Mª.L., Muiño-Blanco, T., Cebrián-Pérez, J.A., and López-Pérez, M.J. (1992). Management of sedimentation in centrifugal counter-current distribution of sperm cells in an aqueous 2-phase system. J. Biochem. Biophys. Methods 24, 275-284. Patrickios, C.S., Abbott, N.L., Foss, R.P., and Hatton, T.A. (1992). Synthetic polyampholytes for protein partitioning in two-phase aqueous polymer systems. In New Developments in Bioseparation AIChE Symposium Series, No. 290, Vol. 88 (M.M. Ataii and S.K. Sikdar, eds.) p. 80-88. American Institute of Chemical Engineers, New York, NY. Persson, A. and Jergil, B. (1992). Purification of plasma membranes by aqueous two-phase affinity partitioning. Anal. Biochem. 204, 131-136. Popello, I.A., Suchkov, V.V., Grinberg, V.Ya., and Tolstoguzov, V.B. (1992). Effects of pH upon the liquid-liquid phase equilibria in solutions of legumins and vicilins from broad beans and peas. Food Hydrocolloids 6, 147-152. Puvvada, S. and Blankschtein, D. (1992). Thermodynamic description of micellization, phase behavior, and phase separation of aqueous solutions of surfactant mixtures. J. Phys. Chem. 96, 5567-5579. Puvvada, S. and Blankschtein, D. (1992). Theoretical and experimental investigations of micellar properties of aqueous solutions containing binary mixtures of nonionic surfactants. J. Phys. Chem. 96, 5579-5592. Rubinstein, B., Stern, A.I., and Chalmers, J.D.C. (1992). Relationship between electron transport across the plasmalemma and a pH decrease in the bulk medium. Plant Physiol. 98, 988-994. Romanowska, E. and Albertsson, P.-Å. (1992). Cytochrome b6/f complex from grana and stroma lamellae from Spinacia oleracea. In Research in Photosynthesis Vol. II (N. Murata, ed.) pp. 507-510. Kluwer Academic Publishers, Dordrecht. Schink, B., Janssen, P.H., and Frings, J. (1992). Microbial degradation of natural and of new synthetic polymers. FEMS Microbiol. Rev. 103, 311-316. Serrano, R., Portillo, F., Monk, B.C., and Palmgren, M.G. (1992). The regulatory domain of fungal and plant plasma membrane H+-ATPase. Acta Physiol. Scand. 146 Suppl. 607, 131-136. Shibusawa, Y. and Ito, Y. (1992). Countercurrent chromatography of proteins with polyethylene glycol-dextran polymer phase systems using type-XLLL cross-axis coil planet centrifuge. J. Liquid Chromatogr. 15, 2787-2800. Shibusawa, Y., Ito, Y., Ikewaki, K., Rader, D.J., and Brewer, Jr.,H.B. (1992). Counter-current chromatography of lipoproteins with a polymer phase system using the cross-axis synchronous coil planet centrifuge. J. Chromatogr. 596, 118-122. Shimeld, S.M. and Sharpe, P.T. (1992). Cell-surface changes induced by ectopic expression of the murine homeobox gene Hox-3.3. Biochim. Biophys. Acta 1136, 253-258. Skuse, D.R., Norris-Jones, R., Yalpani, M., and Brooks, D.E. (1992). Hydroxypropyl cellulose/poly(ethylene glycol)-co-poly(propylene glycol) aqueous two-phase systems: System characterization and partition of cells and proteins. Enzyme Microb. Technol. 14, 785-790. Smahel, M., Klieber, H.-G., and Gradmann, D. (1992). Vanadate-sensitive ATPase in the plasmalemma of Acetabularia: biochemical and kinetic characterization. Planta 188, 62-69. Snyder, S.M., Cole, K.D., and Szlag, D.C. (1992). Phase compositions, viscosities, and densities for aqueous two-phase systems composed of polyethylene glycol and various salts at 25°C. J. Chem. Eng. Data 37, 268-274. Soudain, P., Güclü, J., Bureau, D., Pilard, P., Joulie, C., and Daussant, J. (1992). Purification of plasma membrane and protein composition changes during ripening and senescence of cherry tomato. J. Plant Physiol. 139, 257-264. Stewart, R.M. and Todd, P. (1992). A poly(ethylene glycol)-sodium chloride multiphase system for extraction of acid hydrolysates. In Frontiers in Bioprocessing II (P. Todd, S.K. Sikdar, and M. Bier, eds.) p. 352-356. ACS Books, American Chemical Society, Washington, D.C. Sulk, B., Birkenmeier, G., and Kopperschläger, G. (1992). Application of phase partitioning and thiophilic adsorption chromatography to the purification of monoclonal antibodies from cell culture fluid. J. Immunol. Methods 149, 165-171. Sun, I.L., Sun, E.E., Crane, F.L., Morré, D.J., Lindgren, A., and Löw, H. (1992). Requirement for coenzyme Q in plasma membrane electron transport. Proc. Natl. Acad. Sci. USA 89, 11126-11130. Taipa, M.A., Aires-Barros, M.R., and Cabral, J.M.S. (1992). Purification of lipases. J. Biotechnol. 26, 111-142. Tjerneld, F. (1992). Aqueous two-phase partitioning on an industrial scale. In Poly(Ethylene Glycol) Chemistry: Biotechnical and Biomedical Applications (J. M. Harris, ed.) p. 85-102. Plenum Press, New York. Ugalde, U.O., Hernandez, A., Galindo, I., Pitt, D., Barnes, J.C., and Wakley, G. (1992). Preparation of right-side-out plasma membrane vesicles from Penicillium cyclopium: a critical assessment of markers. J. Gen. Microbiol. 138, 2205-2212. Wägemann, K., Eichacker, S., and Soll, J. (1992). Outer envelope membranes from chloroplasts are isolated as right-side-out vesicles. Planta 187, 89-94. Walter, H., Raymond, F.D., and Fisher, D. (1992). Erythrocyte partitioning in dextran-poly(ethylene glycol) aqueous phase systems: Events in phase and cell separation. J. Chromatogr. 609, 219-227. Walter, H., Webber, T.J., and Krob, E.J. (1992). Effect of cell exposure to top or bottom phase prior to cell partitioning in dextran-poly(ethylene glycol) aqueous phase systems: erythrocytes as a model. Biochim. Biophys. Acta 1105, 221-229. Warren, M., Smith, J.A.C., and Apps, D.K. (1992). Rapid purification and reconstitution of a plant vacuolar ATPase using Triton X-114 fractionation: Subunit composition and substrate kinetics of the H+-ATPase from the tonoplast of Kalanchoë daigremontiana. Biochim. Biophys. Acta 1106, 117-125. Wingren, C., Hansson, U.-B., and K. Andersson (1992). Supports for liquid-liquid partition chromatography in aqueous two-phase systems: a comparison of Superdex and LiParGel. J. Chromatogr. 603, 73-81. Woker, R., Champluvier, B., and Kula, M.-R. (1992). Purification of S-oxynitrilase from Sorghum bicolor by immobilized metal ion affinity chromatography on different carrier materials. J. Chromatogr. 584, 85-92. Yu, M. and Nishiumi, H. (1992). Theory of phase separation in mixtures with lower critical solution temperature. J. Phys. Chem. 96, 842-845. Yu, S-G., Stefánsson, H., and Albertsson, P.-Å. (1992). Localization of 64 kDa LHCII-kinase in the thylakoid membrane from spinach. In Research in Photosynthesis Vol. III (N. Murata, ed.) pp. 14.527-14.530. Kluwer Academic Publishers, Dordrecht. Zalipsky, S. and Lee, C. (1992). Use of functionalized poly(ethylene glycol)s for modification of polypeptides. In Poly(Ethylene Glycol) Chemistry: Biotechnical and Biomedical Applications (J. M. Harris, ed.) p. 347-370. Plenum Press, New York, New York. Zaslavsky, B.Yu. (1992). Bioanalytical applications of partitioning in aqueous polymer two-phase systems. Anal. Chem. 64, 765A-773A. Zaslavsky, B.Yu., Borovskaya, A.A., Gulaeva, N.D., and Miheeva, L.M. (1992). Physico-chemical features of solvent media in the phases of aqueous polymer two-phase systems. Biotechnol. Bioeng. 40, 1-7. Zimmerman, S.B. and Murphy, L.D. (1992). Excluded volume effects on the partition of single- and double-stranded oligodeoxynucleotides between two liquid phases. Biopolymers 32, 1365-1373.

    1993

    Abbott, N.L., Blankschtein, D., and Hatton, T.A. (1993). Protein partitioning in two-phase aqueous polymer systems. 5. Decoupling of the effects of protein concentration, salt type, and polymer molecular weight. Macromolecules 26, 825-828. Abbott, N.L., Blankschtein, D., and Hatton, T.A. (1993). Interactions of globular colloids and flexible polymers: Understanding protein partitioning in two-phase aqueous polymer systems. In Colloid-Polymer Interactions (P.L. Dubin and P. Tong, eds.) pp. 53-67. ACS Symposium Series, Vol. 532. American Chemical Society, Washington, D.C. Alred, P.A., Tjerneld, F., and Modlin, R.F. (1993). Partition of ecdysteroids using temperature-induced phase separation. J. Chromatogr. 628, 205-214. Andersson, K., Wingren, C., and Hansson, U.-B. (1993). Liquid-liquid partition chromatography as a method to examine surface properties of antibodies and antigen-antibody complexes. Scand. J. Immunol. 38, 95-101. Andreasson, E. and Albertsson, P.-Å. (1993). Heterogeneity in Photosystem I--the larger antenna of Photosystem Iα is due to functional connection to a special pool of LHCII. Biochim. Biophys. Acta 1141, 175-182. Aro, E.-M., Virgin, I., and Andersson, B. (1993). Photoinhibition of Photosystem II. Inactivation, protein damage and turnover. Biochim. Biophys. Acta 1143, 113-134. Bae, Y.H. and Kim, S.W. (1993). Hydrogel delivery systems based on polymer blends, block co-polymers or interpenetrating networks. Adv. Drug Deliv. Rev. 11, 109-135. Bérczi, A. and Møller, I.M. (1993). Control of the activity of plant plasma membrane MgATPase by the viscosity of the aqueous phase. Physiol. Plant. 89, 409-415. Blochet, J.-E., Chevalier, C., Forest, E., Pebay-Peyroula, E., Gautier, M.-F., Joudrier, P., Pézolet, M., and Marion, D. (1993). Complete amino acid sequence of puroindoline, a new basic and cystine-rich protein with a unique tryptophan-rich domain, isolated from wheat endosperm by Triton X-114 phase partitioning. FEBS Lett. 329, 336-340. Brown, G. and Chakrabarti, A. (1993). Phase separation dynamics in off-critical polymer blends. J. Chem. Phys. 98, 2451-2458. Carlberg, I. and Andersson, B. (1993). Changed lateral migration of phospho-LHCII in the thylakoid membrane upon acclimation of spinach to low temperatures. FEBS Lett. 333, 10-14. Cartwright, E.J., Harrington, P.M., Cowin, A., and Sharpe, P.T. (1993). Separation of bovine X and Y sperm based on surface differences. Mol. Reprod. Dev. 34, 323-328. Cole, K.D. (1993). Separation of lipoxygenase and the major soybean proteins using aqueous two-phase extraction and poly(ethylene glycol) precipitation systems. J. Agric. Food Chem. 41, 334-340. Cooke, D.T., Ros, R., Burden, R.S., and James, C.S. (1993). A comparison of the influence of sterols on the specific activity of the H+-ATPases in isolated plasma membrane vesicles from oat, rye and rice shoots. Physiol. Plant. 88, 397-402. Delrieu, M.J. and Rosengard, F. (1993). Events near the reaction center in O2 evolving PSII enriched thylakoid membranes: The presence of an electric field during the S2 state in a population of centers. Photosynth. Res. 37, 205-215. Enríquez, J.A., Pérez-Martos, A., Fernández-Silva, P., López-Pérez, M.J., and Montoya, J. (1993). RNA synthesis in isolated mitochondria from brain cortex, cerebellum and stem: Evidence of different transcriptional rates. Int. J. Biochem. 25, 1951-1956. Faraday, C.D. and Spanswick, R.M. (1993). Evidence for a membrane skeleton in higher plants: A spectrin-like polypeptide co-isolates with rice root plasma membranes. FEBS Lett. 318, 313-316. Fricke, B. (1993). Phase separation of nonionic detergents by salt addition and its application to membrane proteins. Anal. Biochem. 212, 154-159. Galaev, I.Y. and Mattiasson, B. (1993). Thermoreactive water-soluble polymers, nonionic surfactants, and hydrogels as reagents in biotechnology. Enzyme Microb. Technol. 15, 354-366. Guan, Y., Lilley, T.H., and Treffry, T.E. (1993). Theory of phase equilibria for multicomponent aqueous solutions: Applications to aqueous polymer two-phase systems. J. Chem. Soc., Faraday Trans. 89, 4283-4298. Guan, Y., Lilley, T.H., and Treffry, T.E. (1993). A new excluded volume theory and its application to the coexistence curves of aqueous polymer two-phase systems. Macromolecules 26, 3971-3979. Hammond, T.G., Majewski, R.R., Onorato, J.J., Brazy, P.C., and Morré, D.J. (1993). Isolation and characterization of renal cortical membranes using an aqueous two-phase partition technique. Biochem. J. 292, 743-748. Hammond, T.G., Morré, D.J., Harris Jr., H.W., and Zeidel, M.L. (1993). Isolation of highly purified, functional endosomes from toad urinary bladder. Biochem. J. 295, 471-476. Haynes, C.A., Benitez, F.J., Blanch, H.W., and Prausnitz, J.M. (1993). Application of integral-equation theory to the description of aqueous two-phase partitioning systems. AIChE J. 39, 1539-1557. Hellgren, L., Morré, D.J., Selldén, G., and Sandelius, A.S. (1993). Isolation of a putative vesicular intermediate in the cell-free transfer of membrane from transitional endoplasmic reticulum to the Golgi apparatus of etiolated seedlings of garden pea. J. Exp. Bot. 44 Suppl., 197-205. Hicks, G.R., Rice, M.S., and Lomax, T.L. (1993). Characterization of auxin-binding proteins from zucchini plasma membrane. Planta 189, 83-90. Jensen, P.E.H., Hägglöf, E.-M., Arbelaez, L.F., Stigbrand, T., and Shanbhag, V.P. (1993). Comparison of conformational changes of pregnancy zone protein and human α2-macroglobulin, a study using hydrophobic affinity partitioning. Biochim. Biophys. Acta 1164, 152-158. Johansson, F., Sommarin, M., and Larsson, C. (1993). Fusicoccin activates the plasma membrane H+-ATPase by a mechanism involving the C-terminal inhibitory domain. Plant Cell 5, 321-327. Juhler, R.K., Andreasson, E., Yu, S-G., and Albertsson, P.-Å. (1993). Composition of photosynthetic pigments in thylakoid membrane vesicles from spinach. Photosynth. Res. 35, 171-178. Kasapis, S., Morris, E.R., Norton, I.T., and Gidley, M.J. (1993). Phase equilibria and gelation in gelatin-maltodextrin systems. 2. Polymer incompatibility in solution. Carbohydr. Polymers 21, 249-259. Kelley, B.D., Wang, D.I.C., and Hatton, T.A. (1993). Affinity-based reversed micellar protein extraction: I. Principles and protein-ligand systems. Biotechnol. Bioeng. 42, 1199-1208. Kelley, B.D., Wang, D.I.C., and Hatton, T.A. (1993). Affinity-based reversed micellar protein extraction: II. Effect of cosurfactant tail length. Biotechnol. Bioeng. 42, 1209-1217. Köhler, K., Nilsson, B., and Veide, A. (1993). Recovery of extracellular human insulin-like growth factor-I and II as a fusion protein from Escherichia coli culture broth by aqueous two-phase extraction. Bioseparation 3, 241-250. Kondo, A., Kaneko, T., and Higashitani, K. (1993). Purification of fusion proteins using affinity microspheres in aqueous two-phase systems. Appl. Microbiol. Biotechnol. 40, 365-369. Kopperschläger, G. and Birkenmeier, G. (1993). Affinity partitioning of biomolecules in aqueous two-phase systems. In Molecular Interactions in Bioseparation (T.T. Ngo, ed.) pp. 499-509. Plenum, New York, NY. Kopperschläger, G. and Kirchberger, J. (1993). Interaction of proteins with biomimetic dye-ligands: Development and application in the purification of proteins. In Immobilised Macromolecules: Application Potentials (U. B. Sleytr, P. Messner, D. Pum, and M. Sára, eds.) pp. 87-104. Springer-Verlag, London, Berlin. Küsthardt, U., Hedman, B., Hodgson, K.O., Hahn, R., and Vilter, H. (1993). High-resolution XANES studies on vanadium-containing haloperoxidase: pH-dependence and substrate binding. FEBS Lett. 329, 5-8. Laespada, Mª.E.F., Pavón, J.L.P., and Cordero, B.M. (1993). Micelle-mediated methodology for the preconcentration of uranium prior to its determination by flow injection. Analyst 118, 209-212. Laukkanen, M.-L., Teeri, T.T., and Keinänen, K. (1993). Lipid-tagged antibodies: Bacterial expression and characterization of a lipoprotein-single-chain antibody fusion protein. Protein Eng. 6, 449-454. Lazic, M.L., Veljkovic, V.B., Vucetic, J.I., and Vrvic, M.M. (1993). Effect of pH and aeration on dextran production by Leuconostoc mesenteroides. Enzyme Microb. Technol. 15, 334-338. Lee, M.M., Green, F. H. Y., Demetrick, D.J., Jiang X., and Schürch, S. (1993). A study of surface property changes in rat mesothelial cells induced by asbestos using aqueous two-phase polymer solutions. Biochim. Biophys. Acta 1181, 223-232. Li, B., Sun, X., Wei, G., and Ma, Z. (1993). Liquid-solid extraction system based on mixed polymers of polyethylene glycol 2000 and Triton X-100 without organic solvents. Anal. Chim. Acta 278, 317-320. Linse, P. (1993). Phase behavior of poly(ethylene oxide)-poly(propylene oxide) block copolymers in aqueous solution. J. Phys. Chem. 97, 13896-13902. Ljungquist, C., Lundeberg, J., Rasmussen, A.-M., Hornes, E., and Uhlen, M. (1993). Immobilization and recovery of fusion proteins and B-lymphocyte cells using magnetic separation. DNA Cell Biol. 12, 191-197. Loubeyre, C., Desnottes, J.F., and Moreau, N. (1993). Influence of sub-inhibitory concentrations of antibacterials on the surface properties and adhesion of Escherichia coli. J. Antimicrob. Chemother. 31, 37-45. Maeda, Y., Tsukida, N., Kitano, H., Terada, T., and Yamanaka, J. (1993). Raman spectroscopic study of water in aqueous polymer solutions. J. Phys. Chem. 97, 13903-13906. Malayer, J.R. and Gorski, J. (1993). An integrated model of estrogen receptor action. Domes. Anim. Endocrinol. 10, 159-177. Marando, M.A. and Clark, W.M. (1993). Two-phase electrophoresis of proteins. Sep. Sci. Technol. 28, 1561-1577. Mårtensson, B.K. and Widell, S. (1993). Pollen from cold-treated Nicotiana tabacum buds: Embryogenic capacity, peroxidase activity and partitioning in aqueous two-phase systems. Plant Cell Tissue Org. Culture 35, 141-149. Medin, A.S. and Janson, J.C. (1993). Studies on aqueous polymer two-phase systems containing agarose. Carbohydr. Polymers 22, 127-136. Mendieta, J. and Johansson, G. (1993). Fractionation of erythroblasts with affinity-mediated modifications of their electrical properties using counter-current distribution. Mol. Cell. Biochem. 121, 93-98. Morré, D.J., Brightman, A.O., Barr, R., Davidson, M., and Crane, F.L. (1993). NADH oxidase activity of plasma membranes of soybean hypocotyls is activated by guanine nucleotides. Plant Physiol. 102, 595-602. Morré, D.J., Davidson, M., Geilen, C., Lawrence, J., Flesher, G., Crowe, R., and Crane, F.L. (1993). NADH oxidase activity of rat liver plasma membrane activated by guanine nucleotides. Biochem. J. 292, 647-653. Morré, D.J., Keenan, T.W., and Morré, D.M. (1993). Golgi apparatus isolation and use in cell-free systems. A perspective. Protoplasma 172, 12-26. Muiño-Blanco, T., Enríquez, J.A., Laveaga, M.J., and López-Pérez, M.J. (1993). Use of a resolving density gradient created with dextran and poly(ethylene glycol) to purify brain synaptosomes. J. Biochem. Biophys. Methods 27, 1-10. Neogi, P. (1993). Electrostatic effects on partitioning of proteins in aqueous two-phase systems. I. pH and charge equilibria. J. Colloid Interface Sci. 159, 261-274. Neuchl, C. and Mersmann, A. (1993). Phase equilibria of narrowly distributed dextrans in the ternary-system dextran-water-ethanol. Fluid Phase Equilibria 90, 389-398. Nguyen, G. and Kruithof, E.K.O. (1993). A quantitative receptor assay using Triton X-114 for plasminogen activator binding proteins in solubilized membranes from human liver and placenta. Anal. Biochem. 208, 277-282. Otamiri, M., Adlercreutz, P., and Mattiasson, B. (1993). Polymer-polymer organic solvent two-phase system: A new type of reaction medium for bioorganic synthesis. Biotechnol. Bioeng. 43, 987-994. Otto, A. and Birkenmeier, G. (1993). Recognition and separation of isoenzymes by metal chelates: Immobilized metal ion affinity partitioning of lactate dehydrogenase isoenzymes. J. Chromatogr. 644, 25-33. Pande, J., Ogun, O.O., Nath, C., and Benedek, G.B. (1993). Suppression of phase separation in bovine gammaIV crystallin solutions: Effect of modification by charged versus uncharged polar groups. Exp. Eye Res. 57, 257-264. Pascual, Mª.L., Muiño-Blanco, T., Cebrián-Pérez, J.A., and López-Pérez, M.J. (1993). Sperm cell heterogeneity revealed by centrifugal counter-current distribution in an aqueous two-phase system. J. Chromatogr. 617, 51-57. Pawar, P.A., Jafarabad, K.R., Sawant, S.B., and Joshi, J.B. (1993). Enzyme mass transfer coefficient in aqueous two-phase systems--Spray extraction columns. Chem. Eng. Commun. 122, 151-169. Pontius, B.W. (1993). Close encounters: Why unstructured, polymeric domains can increase rates of specific macromolecular association. Trends Biochem. Sci. 18, 181-186. Ramón, A.M., Cooke, D.T., and Clarkson, D.T. (1993). Calcium transport across plasma membrane vesicles isolated from shoots of Stellaria media and Avena sativa. Physiol. Plant. 89, 731-740. Raymond, F.D., Moss, D.W., and Fisher, D. (1993). Phase partitioning detects differences between phospholipase-released forms of alkaline phosphatase--A GPI-linked protein. Biochim. Biophys. Acta 1156, 117-122. Robinson, C.P., Ciccotosto, S., Gaal, A.M., and Sparrow, L.G. (1993). Purification of cysteine lyase from larvae of the webbing clothes moth, Tineola bisselliella. Insect Biochem. Mol. Biol. 23, 491-498. Rogers, R.D., Bond, A.H., and Bauer, C.B. (1993). Metal ion separations in polyethylene glycol-based aqueous biphasic systems. Sep. Sci. Technol. 28, 1091-1126. Rogers, R.D., Bond, A.H., and Bauer, C.B. (1993). Aqueous biphasic systems for liquid/liquid extraction of f-elements utilizing polyethylene glycols. Sep. Sci. Technol. 28, 139-153. Rogers, R.D., Bond, A.H., and Bauer, C.B. (1993). The crown ether extraction of group 1 and 2 cations in polyethylene glycol-based aqueous biphasic systems at high alkalinity. Pure Appl. Chem. 65, 567-572. Rogers, R.D., Bond, A.H., and Bauer, C.B. (1993). Polyethylene glycol-based aqueous biphasic systems for liquid/liquid extraction of environmentally toxic heavy metals. In Solvent Extraction in the Process Industries Vol. 3 (D. H. Logsdail and M. J. Slater, eds.) pp. 1641-1648. Elsevier Applied Science, London, New York. Sánchez-Ferrer, A., Laveda, F., and García-Carmona, F. (1993). Partial purification of soluble potato polyphenol oxidase by partitioning in an aqueous two-phase system. J. Agric. Food Chem. 41, 1219-1224. Sánchez-Ferrer, A., Laveda, F., and García-Carmona, F. (1993). Cresolase activity of potato tuber partially purified in a two-phase partition system. J. Agric. Food Chem. 41, 1225-1228. Sánchez-Ferrer, A., Laveda, F., and García-Carmona, F. (1993). Substrate-dependent activation of latent potato leaf polyphenol oxidase by anionic surfactants. J. Agric. Food Chem. 41, 1583-1586. Sancho, P., Garcia-Pérez, A.I., Cuesta, A., Pinilla, M., and Luque, J. (1993). Surface properties of crosslinked and crosslinked-permeabilized erythrocytes as studied by partitioning in aqueous polymer two-phase systems. Biochem. Mol. Biol. Int. 30, 537-545. Save, S.V., Pangarkar, V.G., and Kumar, S.V. (1993). Intensification of mass transfer in aqueous two-phase systems. Biotechnol. Bioeng. 41, 72-78. Shimogawara, K. and Usuda, H. (1993). A concentrating two-phase partitioning: Its application to isolation of plasma membrane from maize roots. Anal. Biochem. 212, 381-387. Shinomiya, K., Menet, J.-M., Fales, H.M., and Ito, Y. (1993). Studies on new cross-axis coil planet centrifuge for performing countercurrent chromatography. I. Design of the apparatus, retention of the stationary phase, and efficiency in the separation of proteins with polymer phase systems. J. Chromatogr. 644, 215-229. Singh, S. (1993). Quantification of countercurrent distribution: From molecular partition to animal behavior. Biochem. Biophys. Res. Commun. 196, 430-434. Sloan, R. and Elliott, R.J. (1993). D-cycloserine as an affinity ligand for L-alanine aminotransferase in aqueous two-phase systems. Biochem. Soc. Trans. 22, 32S. Sonesson, A. and Widell, S. (1993). Cytoskeleton components of inside-out and right-side-out plasma membrane vesicles from plants. Protoplasma 177, 45-52. Stredansky, M., Kremnicky, L., and Sturdík, E. (1993). Effect of polyethylene glycol on Bacillus subtilis α-amylase purification with raw and modified starch. Biotechnol. Techn. 7, 69-74. Stredansky, M., Kremnicky, L., Sturdík, E., and Fecková, A. (1993). Simultaneous production and purification of Bacillus subtilis α-amylase. Appl. Biochem. Biotechnol. 38, 269-276. Stredansky, M., Svorc, R., Sturdík, E., and Dercová, K. (1993). Repeated batch α-amylase production in aqueous two-phase system with Bacillus strains. J. Biotechnol. 27, 181-191. Sutcliffe, I.C. and Hogg, S.D. (1993). Extraction of lipoteichoic acid from Streptococcus mutans with the non-ionic detergent Triton X-114. J. Microbiol. Methods 17, 215-225. Szabó-Nagy, A. and Erdei, L. (1993). The effects of iron deficiency on the ATPase and ferricyanide reductase activities of plasma membrane purified by phase partitioning from sunflower roots. J. Plant Physiol. 142, 579-584. Terstappen, G.C., Ramelmeier, R.A., and Kula, M.-R. (1993). Protein partitioning in detergent-based aqueous two-phase systems. J. Biotechnol. 28, 263-275. Tilcock, C. and Fisher, D. (1993). Two-phase partitioning applied to changes in phospholipid asymmetry. Biochem. Soc. Trans. 21, 262-266. Todd, P., Owen, R.B., Hawker, D.T.L., and Davis, R.H. (1993). Fluid properties and phase equilibria in aqueous phase separations. Fluid Phase Equilibria, in press. Tolstoguzov, V.B. (1993). Thermoplastic extrusion--The mechanism of the formation of extrudate structure and properties. J. Am. Oil Chem. Soc. 70, 417-424. Tolstoguzov, V. B. (1993). Thermodynamic incompatibility of food macromolecules. In Food Colloids and Polymers: Stability and Mechanical Properties Spec. Pub. No. 113 (E. Dickinson and D. Walstra, eds.) pp. 94-102. Royal Society of Chemistry, Cambridge. Utsunomiya, E. and Muto, S. (1993). Carbonic anhydrase in the plasma membranes from leaves of C3 and C4 plants. Physiol. Plant. 88, 413-419. Van Sonsbeek, H.M., Beeftink, H.H., and Tramper, J. (1993). Two-liquid-phase bioreactors. Enzyme Microb. Technol. 15, 722-729. Venncio, A., Teixeira, J.A., and Mota, M. (1993). Evaluation of crude hydroxypropyl starch as a bioseparation aqueous-phase-forming polymer. Biotechnol. Prog. 9, 635-639. Villalba, J.M., Canalejo, A., Rodríguez-Aguilera, J.C., Burón, M.I., Morré, D.J., and Navas, P. (1993). NADH-ascorbate free radical and -ferricyanide reductase activities represent different levels of plasma membrane electron transport. J. Bioenerg. Biomembr. 25, 411-417. Voros, N., Proust, P., and Fredenslund, A. (1993). Liquid-liquid phase equilibria of aqueous two-phase systems containing salts and polyethylene glycol. Fluid Phase Equilibria 90, 333-353. Walker, R.P., Waterworth, W.M., and Hooley, R. (1993). Preparation and polypeptide composition of plasma membrane and other subcellular fractions from wild oat (Avena fatua) aleurone. Physiol. Plant. 89, 388-398. Walter, H., Widen, K.E., and Birkenmeier, G. (1993). Immobilized metal ion affinity partitioning of erythrocytes from different species in dextran-poly(ethylene glycol) aqueous phase systems. J. Chromatogr. 641, 279-289. Walter, H., Widen, K.E., and Read, S.L. (1993). Red blood cells from Alzheimer patients and from normal subjects discerned by cell electrophoresis in an aqueous polymer solution. Biochem. Biophys. Res. Commun. 194, 23-28. Wilkinson, F.E., Paulik, M., and Morré, D.J. (1993). Modulation of guanine triphosphate nucleotide binding to p21ras immunoprecipitates of rat liver plasma membranes by agents affecting redox state. Biochem. Biophys. Res. Commun. 190, 229-235. Yamamoto, K., Yoshikawa, K., and Okada, S. (1993). Detailed action mechanism of dextrin dextranase from Acetobacter capsulatus ATCC 11894. Biosci. Biotechnol. Biochem. 57, 47-50. Yamamoto, K., Yoshikawa, K., and Okada, S. (1993). Dextran synthesis from reduced maltooligosaccharides by dextrin dextranase from Acetobacter capsulatus ATCC 11894. Biosci. Biotechnol. Biochem. 57, 136-137. Yu, S-G., Björn, G., and Albertsson, P.-Å. (1993). Characterization of a non-detergent PS II-cytochrome b/f preparation (BS). Photosynth. Res. 37, 227-236. Zimmerman, R.J., Chao, H., Fullerton, G.D., and Cameron, I.L. (1993). Solute/solvent interaction corrections account for non-ideal freezing point depression. J. Biochem. Biophys. Methods 26, 61-70.

    1994

    Albertsson, P.-Å. (1994). Domain structure of biological membranes obtained by fragmentation and separation analysis. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 503-511. Academic Press, San Diego, California. Albertsson, P.-Å. (1994). Chiral resolution. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 84-86. Academic Press, San Diego, California. Albertsson, P.-Å., Andreasson, E., Stefánsson, H., and Wollenberger, L. (1994). Fractionation of thylakoid membrane. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 469-482. Academic Press, San Diego, California. Albertsson, P.-Å. and Tjerneld, F. (1994). Phase diagrams. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 3-13. Academic Press, San Diego, California. Alred, P.A., Kozlowski, A., Harris, J.M., and Tjerneld, F. (1994). Application of temperature-induced phase partitioning at ambient temperature for enzyme purification. J. Chromatogr. A 659, 289-298. Åkerlund, H.-E. and Albertsson, P.-Å. (1994). Thin-layer countercurrent distribution and centrifugal countercurrent distribution apparatus. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 87-99. Academic Press, San Diego, California. Anderson, L.E., Li, D., and Pacold, M.M. (1994). Pyridine nucleotide-dependent changes in the phase-partitioning behavior of NADP-linked glyceraldehyde-3-phosphate dehydrogenase from pea chloroplasts. Plant Sci. 99, 39-42. Andreasen, P.A. (1994). Molecular weight of proteins and their partitioning in aqueous two-phase systems. J. Chromatogr. A, in press Andrews, B.A. and Haywood, K. (1994). Effect of pH, ion type and ionic strength on partitioning of proteins in reverse micelle systems. J. Chromatogr. A 668, 55-60. Andrews, B.A., Pyle, D.L., and Asenjo, J.A. (1994). The effects of pH and ionic strength on the partitioning of four proteins in reverse micelle systems. Biotechnol. Bioeng. 43, 1052-1058. Asenjo, J.A., Schmidt, A.S., Hachem, F., and Andrews, B.A. (1994). Model for predicting the partition behaviour of proteins in aqueous two-phase systems. J. Chromatogr. A 668, 47-54. Asenjo, J.A., Turner, R.E., Mistry, S.L., and Kaul, A. (1994). Separation and purification of recombinant proteins from Escherichia coli with aqueous two-phase systems. J. Chromatogr. A 668, 129-137. Baré, G., Delaunois, V., Rikir, R., and Thonart, P. (1994). Bioconversion of vanillin into vanillic acid by Pseudomonas fluorescens strain BTP9. Appl. Biochem. Biotechnol. 45-46, 599-610. Bhawsar, P.C.M., Pandit, A., Sawant, S.B., and Joshi, J.B. (1994). Enzyme mass-transfer coefficient in a sieve-plate extraction column. Chem. Eng. J. and Biochem. Eng. J. 55, B1-B17. Birkenmeier, G. (1994). Partitioning of blood proteins using immobilized dyes. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 154-167. Academic Press, San Diego, California. Birkenmeier, G. and Kopperschläger, G. (1994). Detection of conformational changes in proteins by probing with poly(ethylene glycol)-bound ligands. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 264-275. Academic Press, San Diego, California. Birkenmeier, G. and Kopperschläger, G., eds. (1994). Papers presented at the 8th International Conference on Partitioning in Aqueous Two-Phase Systems, Leipzig, 1993. J. Chromatogr. A 668, 1-247. Birkenmeier, G., Walter, H., and Widen, K.E. (1994). Factors in the affinity extraction of red blood cells using poly(ethylene glycol)-metal chelate. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 368-377. Academic Press, San Diego, California. Blennow, A. (1994). Starch synthase from potato tubers. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 179-182. Academic Press, San Diego, California. Blomquist, G.K. and Ström, G.B. (1994). Classification of Penicillium fungi by cross-partition analysis. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 354-362. Academic Press, San Diego, California. Bourgeade, P. and Boyer, N. (1994). Plasma membrane H+-ATPase activity in response to mechanical stimulation of Bryonia dioica internodes. Plant Physiol. Biochem. 32, 661-668. Bradley, M.E., Lambert, R.W., and Mircheff, A.K. (1994). Isolation and identification of plasma membrane populations. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 432-448. Academic Press, San Diego, California. Brooks, D.E. and Norris-Jones, R. (1994). Preparation and analysis of two-phase systems. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 14-27. Academic Press, San Diego, California. Brooks, D.E. and Stocks, S.J. (1994). Use of polyacrylamide-derivatized antibody in dextran-poly(ethylene glycol) systems. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 390-395. Academic Press, San Diego, California. Brusca, J.S. and Radolf, J.D. (1994). Isolation of integral membrane proteins by phase partitioning with Triton X-114. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 182-193. Academic Press, San Diego, California. Chung, B.H., Bailey, D., and Arnold, F.H. (1994). Metal affinity partitioning. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 167-179. Academic Press, San Diego, California. Clark, J.I. (1994). Lens cytoplasmic protein solutions: Analysis of a biologically occurring aqueous phase separation. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 525-537. Academic Press, San Diego, California. Cole, K.D. and Cousin, S.L., Jr. (1994). Size exclusion chromatography of soybean proteins and isoflavones. J. Agric. Food Chem. 42, 2713-2720. Cordes, A. and Kula, M.-R. (1994). Large-scale purification of formate dehydrogenase. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 600-608. Academic Press, San Diego, California. Crowther, N.J. and Eagland, D. (1994). Aqueous solutions of polypropylene oxide: Unusual solution behaviour. J. Chem. Soc. Chem. Commun. 1994, 839-840. Delgado, C., Francis, G.E., and Fisher, D. (1994). Bioextraction of low abundance cells by affinity partitioning. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 395-402. Academic Press, San Diego, California. Delgado, C., Malik, F., Selisko, B., Fisher, D., and Francis, G.E. (1994). Quantitative analysis of polyethylene glycol (PEG) in PEG-modified proteins/cytokines by aqueous two-phase systems. J. Biochem. Biophys. Methods 29, 237-250. Diener, A. and Goldschmidt, B. (1994). Suboptimal control of fed-batch bioprocesses using phase properties. J. Biotechnol. 33, 71-85. Dissing, U. and Mattiasson, B. (1994). Cultivation of Lactococcus lactis in a polyelectrolyte-neutral polymer aqueous two phase system. Biotechnol. Lett. 16, 333-338. dos Reis Coimbra, J., Thömmes, J., and Kula, M.-R. (1994). Continuous separation of whey proteins with aqueous two-phase systems in a Grasser contactor. J. Chromatogr. A 668, 85-94. Effing, J.J., McLennan, I.J., and Kwak, J.C.T. (1994). Associative phase separation observed in a hydrophobically modified poly(acrylamide)/sodium dodecyl sulfate system. J. Phys. Chem. 98, 2499-2502. Eiteman, M.A. (1994). Predicting partition coefficients of multicharged solutes in aqueous two-phase systems. J. Chromatogr. A 668, 21-30. Eiteman, M.A. (1994). Temperature-dependent phase inversion and its effect on partitioning in the poly(ethylene glycol)/ammonium sulfate aqueous two-phase system. J. Chromatogr. A 668, 13-19. Eiteman, M.A. (1994). Partitioning of charged solutes in poly(ethylene glycol)/potassium phosphate aqueous two-phase systems. Sep. Sci. Technol. 29, 685-700. Eiteman, M.A., Hassinen, C., and Veide, A. (1994). A mathematical model to predict the partitioning of peptides and peptide-modified proteins in aqueous two-phase systems. Biotechnol. Prog. 10, 513-519. Fonseca, L.P., Caldeira, J.C.G., and Cabral, J.M.S. (1994). Improvements in the polyethylene glycol/Cibacron Blue purification method. J. Chromatogr. A 668, 61-64. Forciniti, D. (1994). Protein refolding using aqueous two-phase systems. J. Chromatogr. A 668, 95-100. Forciniti, D. and Hall, C.K. (1994). Structural properties of mixtures of highly asymmetrical electrolytes and uncharged particles using the hypernetted chain approximation. J. Chem. Phys. 100, 7553-7566. Francis, G.E. and Fisher, D. (1994). Purification of nucleic acid-protein complexes. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 206-220. Academic Press, San Diego, California. Frankewich, R.P. and Hinze, W.L. (1994). Evaluation and optimization of the factors affecting nonionic surfactant-mediated phase separations. Anal. Chem. 66, 944-954. Fredlund, K.M., Struglics, A., Widell, S., Askerlund, P., Kader, J.-C., and Møller, I.M. (1994). Comparison of the stereospecificity and immunoreactivity of NADH-ferricyanide reductases in plant membranes. Plant Physiol. 106, 1103-1106. Gardeström, P., Petit, P.X., and Møller, I.M. (1994). Purification and characterization of plant mitochondria and submitochondrial particles. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 424-431. Academic Press, San Diego, California. Garg, N., Galaev, I.Y., and Mattiasson, B. (1994). Use of a temperature-induced phase-forming detergent (Triton X-114) as ligand carrier for affinity partitioning in an aqueous three-phase system. Biotechnol. Appl. Biochem. 20, 199-217. Garrido, D., Perez, A., and Sánchez-Ferrer, A. (1994). Meat pigment determination by phase partitioning in Triton X-114 and oxidation with sodium nitrite. J. Sci. Food Agric. 64, 327-329. Gierow, P. (1994). Relative proximity of domains in plasma membrane and smooth endoplasmic reticulum from rat liver. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 512-522. Academic Press, San Diego, California. Gilljam, G., Siridewa, K., and Hammar, L. (1994). Purification of simian immunodeficiency virus, SIVMAC251, and of its external envelope glycoprotein, gp148. J. Chromatogr. A 675, 89-100. Guan, Y., Lilley, T.H., Garca-Lisbona, M.N., and Treffry, T.E. (1994). New approaches to aqueous polymer systems--Theory, thermodynamics and applications to biomolecular separations. Pure Appl. Chem., in press. Guan, Y., Treffry, T.E., and Lilley, T.H. (1994). E. coli penicillin acylase isolation by selective release, aqueous two-phase partitioning and ultrafiltration. Bioseparation 4, 89-99. Guan, Y., Treffry, T.E., and Lilley, T.H. (1994). Application of a statistical geometrical theory to aqueous two-phase systems. J. Chromatogr. A 668, 31-45. Guoquiang, D., Kaul, R., and Mattiasson, B. (1994). Integration of aqueous two-phase extraction and affinity precipitation for the purification of lactate dehydrogenase. J. Chromatogr. A 668, 145-152. Hammar, L. (1994). Concentration of biomaterials: Virus concentration and viral protein isolation. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 640-658. Academic Press, San Diego, California. Hansen, J.C. (1994). Analysis of protein structural changes in steroid receptors by partitioning. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 276-286. Academic Press, San Diego, California. Hassinen, C., Köhler, K., and Veide, A. (1994). Polyethylene glycol-potassium phosphate aqueous two-phase systems: Insertion of short peptide units into a protein and its effects on partitioning. J. Chromatogr. A 668, 121-128. Hayoun, M., Meyer, M., and Turq, P. (1994). Molecular dynamics study of a solute-transfer reaction across a liquid-liquid interface. J. Phys. Chem. 98, 6626-6632. Hensley, C.B. and Mircheff, A.K. (1994). Complex subcellular distribution of sodium-dependent amino acid transport systems in kidney cortex and LLC-PK1/Cl4 cells. Kidney Int. 45, 110-122. Hernández, A., Cooke, D.T., and Clarkson, D.T. (1994). Lipid composition and proton transport in Penicillium cyclopium and Ustilago maydis plasma membrane vesicles isolated by two-phase partitioning. Biochim. Biophys. Acta 1195, 103-109. Holtzer, A. (1994). Does Flory-Huggins theory help in interpreting solute partitioning experiments? Biopolymers 34, 315-320. Hubert, P. (1994). Use of partitioning in predicting mild hydrophobic interaction chromatography behavior. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 287-295. Academic Press, San Diego, California. Huddleston, J.G., Wang, R., Flanagan, J.A., O'Brien, S., and Lyddiatt, A. (1994). Variation of protein partition coefficients with volume ratio in poly(ethylene glycol)/salt aqueous two-phase systems. J. Chromatogr. A 668, 3-11. Huddleston, J.G., Wang, R., and Lyddiatt, A. (1994). On the use of mild hydrophobic interaction chromatography for "method scouting" protein purification strategies in aqueous two-phase systems: A study using model proteins. Biotechnol. Bioeng. 44, 626-635. Jäschke, A., Fürste, J.P., Erdmann, V.A., and Cech, D. (1994). Hybridization-based affinity partitioning of nucleic acids using PEG-coupled oligonucleotides. Nucleic Acids Res. 22, 1880-1884. Jäschke, A., Fürste, J.P., Nordhoff, E., Hillenkamp, F., Cech, D., and Erdmann, V.A. (1994). Synthesis and properties of oligodeoxyribonucleotide-polyethylene glycol conjugates. Nucleic Acids Res. 22, 4810-4817. Jensen, P.E.H., Stigbrand, T., and Shanbhag, V.P. (1994). Use of hydrophobic affinity partitioning as a method for studying various conformational states of the human α-macroglobulins. J. Chromatogr. A 668, 101-106. Joelsson, M. and Tjerneld, F. (1994). Purification of lactate dehydrogenase from pig muscle by affinity partitioning. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 136-143. Academic Press, San Diego, California. Johansson, F., Sommarin, M., and Larsson, C. (1994). Rapid purification of the plasma membrane H+-ATPase in its non-activated form using FPLC. Physiol. Plant. 92, 389-396. Johansson, G. (1994). Uses of poly(ethylene glycol) with charged or hydrophobic groups. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 64-74. Academic Press, San Diego, California. Johansson, G. (1994). Synaptic membranes. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 496-503. Academic Press, San Diego, California. Johansson, G. (1994). Partitioning procedures and techniques: Small and macromolecules. In Methods in Enzymology Vol. 228(H. Walter and G. Johansson, eds.) pp. 28-42. Academic Press, San Diego, California. Johansson, G. (1994). Charge determination by partitioning. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 234-240. Academic Press, San Diego, California. Johansson, G. (1994). Recovery of proteins and phase-forming chemicals. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 569-573. Academic Press, San Diego, California. Johansson, G. and Joelsson, M. (1994). Systems containing organic solvents. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 74-83. Academic Press, San Diego, California. Johansson, G., Olde, B., and Joelsson, M. (1994). Effect of some poly(ethylene glycol)-bound and dextran-bound affinity ligands on the partition of synaptic membranes in aqueous two-phase systems. J. Chromatogr. B 652, 137-147. Kan, P. and Lee, C.J. (1994). Application of aqueous two-phase system in separation/purification of stroma free hemoglobin from animal blood. Artif. Cells, Blood Subst., and Immobilization Biotechnol. 22, 641-649. Karr, L.J., Donnelly, D.L., Kozlowski, A., and Harris, J.M. (1994). Use of poly(ethylene glycol)-modified antibody in cell extraction. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 377-390. Academic Press, San Diego, California. Kaul, R. and Mattiasson, B. (1994). Biotransformation of hydrocortisone into prednisolone. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 559-568. Academic Press, San Diego, California. Khac, B.-P.S. and Moreau, N. (1994). Interactions between fluoroquinolones, Mg2+, DNA and DNA gyrase, studied by phase partitioning in an aqueous two-phase system and by affinity chromatography. J. Chromatogr. A 668, 241-247. Kimura, K. and Kobayashi, H. (1994). Yeast RNA partition accompanying adsorption in salt/PEG two-phase system. Biotechnol. Techn. 8, 473-478. Kirchberger, J., Erdmann, H., Hecht, H.-J., and Kopperschläger, G. (1994). Studies on the interaction of NADH oxidase from Thermus thermophilus HB8 with triazine dyes. J. Chromatogr. A 668, 153-164. Kopperschläger, G. (1994). Affinity extraction with dye-ligands. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 121-136. Academic Press, San Diego, California. Kopperschläger, G. (1994). Phosphofructokinase from baker's yeast. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 144-153. Academic Press, San Diego, California. Köhler, K. and Veide, A. (1994). Uses of fusions of β-galactosidase and peptides to proteins. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 627-640. Academic Press, San Diego, California. Lantz, P.-G., Tjerneld, F., Borch, E., Hahn-Hägerdal, B., and Rådström, P. (1994). Enhanced sensitivity in PCR detection of Listeria monocytogenes in soft cheese through use of an aqueous two-phase system as a sample preparation method. Appl. Environ. Microbiol. 60, 3416-3418. Larsson, C. (1994). Isolation of highly purified intact chloroplasts and of multiorganelle complexes containing chloroplasts. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 419-424. Academic Press, San Diego, California. Larsson, C., Sommarin, M., and Widell, S. (1994). Isolation of highly purified plant plasma membranes and the separation of inside-out and right-side-out vesicles. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 451-469. Academic Press, San Diego, California. Larsson, P.-O. (1994). Magnetically enhanced phase separation. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 112-117. Academic Press, San Diego, California. Leser, E.W. and Asenjo, J.A. (1994). The rational selection of purification processes for proteins: An expert system for downstream processing design. Ann. NY Acad. Sci. 721, 337-347. Liu, C.-L., Nikas, Y.J., and Blankschtein, D. (1994). Partitioning of proteins using two-phase aqueous surfactant systems. In preparation. López-Pérez, M.J. (1994). Preparation of synaptosomes and mitochondria from mammalian brain. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 403-411. Academic Press, San Diego, California. Lu, M., Albertsson, P.-Å., Johansson, G., and Tjerneld, F. (1994). Partitioning of proteins and thylakoid membrane vesicles in aqueous two-phase systems with hydrophobically modified dextran. J. Chromatogr. A 668, 215-228. Lundberg, S. and Backman, L. (1994). Protein-protein and protein-ligand interactions. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 241-254. Academic Press, San Diego, California. Luther, J.R. and Glatz, C.E. (1994). Genetically engineered charge modifications to enhance protein separation in aqueous two-phase systems: Electrochemical partitioning. Biotechnol. Bioeng. 44, 147-153. Macasek, F. and Gerhart, P. (1994). Distribution and speciation of cesium, strontium, and europium in the two-phase system milk-pectin. J. Radioanal. Nucl. Chem. 186, 9-21. Magnusson, K.-E. (1994). Testing for charge and hydrophobicity correlates in cell-cell adhesion. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 326-334. Academic Press, San Diego, California. Mårtensson, B.K. and Widell, S. (1994). Separation of pollen from Nicotiana tabacum. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 344-354. Academic Press, San Diego, California. Mendieta, J. (1994). Charge-directed affinity partitioning of cells. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 363-368. Academic Press, San Diego, California. Menge, U. (1994). Purification of proteins from cell culture supernatant solutions. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 617-626. Academic Press, San Diego, California. Modlin, R.F., Alred, P.A., and Tjerneld, F. (1994). Utilization of temperature-induced phase separation for the purification of ecdysone and 20-hydroxy-ecdysone from spinach. J. Chromatogr. A 668, 229-236. Moreau, P., Sturbois, B., Morré, D.J., and Cassagne, C. (1994). Effect of low temperatures on the transfer of phospholipids with various acyl-chain lengths to the plasma membrane of leek cells. Biochim. Biophys. Acta 1194, 239-246. Morré, D.J. and Andersson, B. (1994). Isolation of all major organelles and membranous cell components from a single homogenate of green leaves. In Methods in Enzymology Vol. 228(H. Walter and G. Johansson, eds.) pp. 412-419. Academic Press, San Diego, California. Morré, D.J., Lawrence, J., Safranski, K., Hammond, T.G., and Morré, D.M. (1994). Experimental basis for separation of membrane vesicles by preparative free-flow electrophoresis. J. Chromatogr. A 668, 201-213. Morré, D.J., Reust, T., and Morré, D.M. (1994). Plasma and internal membranes from cultured mammalian cells. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 448-450. Academic Press, San Diego, California. Müller, W. (1994). Columns using aqueous two-phase systems. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 100-112. Academic Press, San Diego, California. Müller, W. (1994). Separation of proteins and nucleic acids. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 193-206. Academic Press, San Diego, California. Nanak, E., Vijayalakshmi, M.A., and Chadha, K.C. (1994). Segregation of normal and pathological human red blood cells, lymphocytes and fibroblasts by immobilized metal-ion partitioning. J. Molec. Recognition 8, 77-84. Norling, B., Mirzakhanian, V., Nilsson, F., Morré, D.J., and Andersson, B. (1994). Subfractional analysis of cyanobacterial membranes and isolation of plasma membranes by aqueous polymer two-phase partitioning. Anal. Biochem. 218, 103-111. Ollero, M., Pascual, M.L., Muiño-Blanco, T., Cebrián-Pérez, J.A., and López-Pérez, M.J. (1994). Revealing surface changes associated with maturation of ram spermatozoa by centrifugal counter-current distribution in an aqueous two-phase system. J. Chromatogr. A 668, 173-178. Papamichael, N. and Hustedt, H. (1994). Enzyme recovery by continuous crosscurrent extraction. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 573-584. Academic Press, San Diego, California. Paquet, V., Myint, M., Roque, C., and Soucaille, P. (1994). Partitioning of pristinamycins in aqueous two-phase systems: A first step toward the development of antibiotic production by extractive fermentation. Biotechnol. Bioeng. 44, 445-451. Paulsen, J. and Hustedt, H. (1994). Extractive purification of aspartase from Escherichia coli K12. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 590-599. Academic Press, San Diego, California. Persson, A. and Jergil, B. (1994). Rat liver plasma membranes. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 489-496. Academic Press, San Diego, California. Pesliakas, H., Zutautas, V.D., and Baskeviciuté, B. (1994). Immobilized metal-ion affinity partitioning of NAD+-dependent dehydrogenases in poly(ethylene glycol)-dextran two-phase systems. J. Chromatogr. A 678, 25-34. Pinilla, M., de la Fuente, J., Garcia-Pérez, A.I., Jimeno, P., Sancho, P., and Luque, J. (1994). Biochemical characterization of human erythrocytes fractionated by counter-current distribution in aqueous polymer two-phase systems. J. Chromatogr. A 668, 165-171. Pouliot, J.-F. and Béliveau, R. (1994). Extraction of brain capillary membrane proteins using Triton X-114. Biochem. Mol. Biol. Int. 34, 1075-1084. Prazeres, D.M.F. and Cabral, J.M.S. (1994). Enzymatic membrane bioreactors and their applications. Enzyme Microb. Technol. 16, 738-750. Rabotti, G. and Zocchi, G. (1994). Plasma membrane-bound H+-ATPase and reductase activities in Fe-deficient cucumber roots. Physiol. Plant. 90, 779-785. Raymond, F.D., Moss, D.W., and Fisher, D. (1994). Separation of alkaline phosphatase isoforms with and without intact glycan-phosphatidylinositol anchors in aqueous polymer phase systems. Clin. Chim. Acta 227, 111-120. Rogers, R.D., Bauer, C.B., and Bond, A.H. (1994). Crown ethers as actinide extractants in acidic aqueous biphasic systems: Partitioning behavior in solution and crystallographic analysis of the solid state. J. Alloys Compds. 213/214, 305-312. Rogers, R.D., Bauer, C.B., and Bond, A.H. (1994). Novel polyethylene glycol-based aqueous biphasic systems for the extraction of strontium and cesium. Sep. Sci. Technol. 30, 1203-1217. Romanowska, E. and Albertsson, P.-Å. (1994). Isolation and characterization of the cytochrome bf complex from whole thylakoids, grana, and stroma lamellae vesicles from spinach chloroplasts. Plant Cell Physiol. 35, 557-568. Ronen, R., Lipsker, Z., Sonego, L., and Lurie, S. (1994). Plasma membrane ATPase isolated from green bell pepper fruit by two-phase partitioning or sucrose density gradient. Israel J. Plant Sci. 42, 15-27. Salem, N., Medilanski, J., Pellegrinelli, N., and Eder-Colli, L. (1994). Hydrophilic and amphiphilic forms of Drosophila choline acetyltransferase are encoded by a single mRNA. Eur. J. Neurosci. 6, 737-745. Sánchez-Ferrer, A., Bru, R., and García-Carmona, F. (1994). Phase separation of biomolecules in polyoxyethylene glycol nonionic detergents. Crit. Rev. Biochem. Mol. Biol. 29, 275-313. Sánchez-Ferrer, A., Pérez-Gilabert, M., Núñez, E., Bru, R., and García-Carmona, F. (1994). Triton X-114 phase partitions in plant protein purification. J. Chromatogr. A 668, 75-83. Sancho, P., Mendieta, J., García-Pérez, A.I., and Luque, J. (1994). Transferrin binding capacity as a marker of differentiation and maturation of rat erythroid cells fractionated by counter current distribution in aqueous polymer two-phase systems. Biosci. Rep. 14, 119-130. Sarmento, M.J., Pires, M.J., Cabral, J.M.S., and Aires-Barros, M.R. (1994). Liquid-liquid extraction of a recombinant protein, cytochrome b5, with aqueous two-phase systems of polyethylene glycol and potassium phosphate salts. J. Chromatogr. A 668, 117-120. Schmidt, A.S., Ventom, A.M., and Asenjo, J.A. (1994). Partitioning and purification of α-amylase in aqueous two-phase systems. Enzyme Microb. Technol. 16, 131-142. Schütte, H., Schustolla, D., and Hustedt, H. (1994). Extraction and purification of leucine dehydrogenase from Bacillus cereus. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 608-617. Academic Press, San Diego, California. Sebastiao, M.J., Cabral, J.M.S., and Aires-Barros, M.R. (1994). Partitioning of recombinant Fusarium solani pisi cutinase in polyethylene glycol-aqueous salt solution two-phase systems. J. Chromatogr. A 668, 139-144. Serrano, A., Cordoba, F., Gonzalez-Reyes, J.S., Navas, P., and Villalba, J.M. (1994). Purification and characterization of two distinct NAD(P)H dehydrogenases from onion (Allium cepa L) root plasma membrane. Plant Physiol. 106, 87-96. Shanbhag, V.P. (1994). Estimation of surface hydrophobicity of proteins by partitioning. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 254-264. Academic Press, San Diego, California. Sharpe, P.T. (1994). Surface changes during growth and development of slime molds. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 334-344. Academic Press, San Diego, California. Singh, M. and Clark, W.M. (1994). Partitioning of vancomycin using poly(ethylene glycol)-coupled ligands in aqueous two-phase systems. Biotechnol. Prog. 10, 503-512. Sklenar, J. and Loughman, B.C. (1994). Ion permeability of maize root membrane vesicles: Studies with light scattering. Plant Soil 167, 63-66. Smeds, A.-L. and Enfors, S.-O. (1994). Extraction of chromatophores. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 658-665. Academic Press, San Diego, California. Stallaert, V.M., Cooke, D.T., and Geuns, J.M.C. (1994). Isolation of plasma membranes from mung bean hypocotyl sections by two-phase partitioning: suitability of the technique for ageing tissues. Physiol. Plant. 90, 671-678. Stefansson, M. and Novotny, M. (1994). Modification of the electrophoretic mobility of neutral and charged polysaccharides. Anal. Chem. 66, 3466-3471. Stefánsson, H., Wollenberger, L., and Albertsson, P.-Å. (1994). Fragmentation and separation of the thylakoid membrane. Effect of light-induced protein phosphorylation on domain composition. J. Chromatogr. A 668, 191-200. Stredansky, M., Tomaska, M., Tomaskova, A., and Sturdík, E. (1994). Lactose hydrolysis in an aqueous two-phase system by whole-cell β-galactosidase of Kluyveromyces marxianus: partition and separation characteristics. J. Chromatogr. A 668, 179-183. Ström, G.B., Mälarstig, B., and Blomquist, G.K. (1994). Purification of water-based cutting fluids. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 672-678. Academic Press, San Diego, California. Tanaka, H. (1994). Critical dynamics and phase-separation kinetics in dynamically asymmetric binary fluids: New dynamic universality class for polymer mixtures or dynamic crossover. J. Chem. Phys. 100, 5323-5337. Tjerneld, F. (1994). Enzyme-catalyzed hydrolysis and recycling in cellulose bioconversion. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 549-558. Academic Press, San Diego, California. Tjerneld, F. and Persson, I. (1994). Cultivation of Trichoderma reesei and production of cellulolytic enzymes. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 541-548. Academic Press, San Diego, California. Van Oss, C.J. (1994). Interfacial Forces in Aqueous Media. Marcel Dekker, New York, New York. Videira, M. and Aires-Barros, M.R. (1994). Liquid-liquid extraction of clavulanic acid using an aqueous two-phase system of polyethylene glycol and potassium phosphate. J. Chromatogr. A 668, 237-240. Vilter, H. (1994). Extraction of proteins from sources containing tannins and anionic mucilages. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 665-672. Academic Press, San Diego, California. Walter, H. (1994). Analytical applications of partitioning: Detection of differences or changes in surface properties of mammalian cell populations. In Methods in Enzymology Vol. 228(H. Walter and G. Johansson, eds.) pp. 299-320. Academic Press, San Diego, California. Walter, H. (1994). Cell-cell affinity. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 320-326. Academic Press, San Diego, California. Walter, H. and Forciniti, D. (1994). Cross-partitioning: Determination of isoelectric point by partitioning. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 223-233. Academic Press, San Diego, California. Walter, H. and Johansson, G., eds. (1994). Methods in Enzymology Vol. 228 (on "Aqueous Two-Phase Systems"). Academic Press, San Diego, California. Walter, H. and Larsson, C. (1994). Partitioning procedures and techniques: Cells, organelles, and membranes. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 42-63. Academic Press, San Diego, California. Walter, H. and Widen, K.E. (1994). Cell partitioning in two-polymer aqueous phase systems and cell electrophoresis in aqueous polymer solutions. Red blood cells from different species. J. Chromatogr. A 668, 185-190. Walter, H. and Widen, K.E. (1994). Cell partitioning in two-polymer aqueous phase systems and cell electrophoresis in aqueous polymer solutions. Human and rat young and old red blood cells. Biochim. Biophys. Acta 1194, 131-137. Wang, R., Otto, A., Huddleston, J.G., and Lyddiatt, A. (1994). Salting-out phenomena in aqueous two-phase partition, hydrophobic interaction chromatography and fractional precipitation. In Separations for Biotechnology Vol. 3 (D.L. Pyle, ed.) pp. 532-538. Royal Society of Chemistry, Cambridge, UK. Wenzel, U. and Ziegler, K. (1994). Binding proteins for cyclosomatostatins and bile acids in basolateral plasma membranes of rat liver. Biochim. Biophys. Acta 1193, 17-23. Widell, S., Asp, H., and Jensén, P. (1994). Activities of plasma membrane-bound enzymes isolated from roots of spruce (Picea abies) grown in the presence of aluminium. Physiol. Plant. 92, 459-466. Wiegel, D., Meyer, C., and Arnold, K. (1994). Partitioning of high-density lipoproteins in charge-sensitive two-phase systems. J. Chromatogr. B 661, 159-164. Wiegel, D., Richter, O., and Arnold, K. (1994). Partition of chemically modified low-density lipoprotein in aqueous polymer two-phase systems. J. Chromatogr. A 668, 107-116. Wingren, C., Persson, B., and Hansson, U.-B. (1994). Supports for liquid-liquid partition chromatography in aqueous two-phase systems: a comparison of LiChrospher and LiParGel. J. Chromatogr. A 668, 65-73. Woker, R., Vernau, J., and Kula, M.-R. (1994). Purification of oxynitrilases from plants. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 584-590. Academic Press, San Diego, California. Wollenberger, L., Stefánsson, H., Yu, S-G., and Albertsson, P.-Å. (1994). Isolation and characterization of vesicles originating from the chloroplast grana margins. Biochim. Biophys. Acta 1184, 93-102. Xu, C.H., Nejidat, A., Belkin, S., and Boussiba, S. (1994). Isolation and characterization of the plasma membrane by two-phase partitioning from the alkalophilic cyanobacterium Spirulina platensis. Plant Cell Physiol. 35, 737-741. Yang, W.-Y., Lin, C.-D., Chu, I.-M., and Lee, C.-J. (1994). Extraction of cephalosporin C from whole broth and separation of desacetyl cephalosporin C by aqueous two-phase partition. Biotechnol. Bioeng. 43, 439-445. Yoshida, S. (1994). Isolation of smooth endoplasmic reticulum and tonoplast from etiolated mung bean hypocotyls. In Methods in Enzymology Vol. 228 (H. Walter and G. Johansson, eds.) pp. 482-489. Academic Press, San Diego, California. Yu, M. and Arons, J.D. (1994). Phase behavior of aqueous solutions of neutral and charged polymer mixtures. Polymer 35, 3499-3502. Yu, S-G., Romanowska, E., Xue, Z., and Albertsson, P.-Å. (1994). Evidence for two different Rieske iron-sulfur proteins in the cytochrome bf complex of spinach chloroplast. Biochim. Biophys. Acta 1185, 239-242. Yu, S-G., Stefánsson, H., Romanowska, E., and Albertsson, P.-Å. (1994). Two dimensional electrophoresis of thylakoid membrane proteins and its application to microsequencing. Photosynth. Res. 41, 475-486. Zhang, K., Carlsson, M., Linse, P., and Lindman, B. (1994). Phase behavior of copolymer-homopolymer mixtures in aqueous solution. J. Phys. Chem. 98, 2452-2458. Zhang, K., Jonströmer, M., and Lindman, B. (1994). Interaction between nonionic micelles and a nonionic polymer studied by Fourier transform NMR self-diffusion. J. Phys. Chem. 98, 2459-2463. Zhang, K., Karlström, G., and Lindman, B. (1994). Ternary aqueous mixtures of a nonionic polymer with a surfactant or a second polymer. A theoretical and experimental investigation of the phase behavior. J. Phys. Chem. 98, 4411-4421. Zhou, B.-L., Arakawa, K., Fujikawa, S., and Yoshida, S. (1994). Cold-induced alterations in plasma membrane proteins that are specifically related to the development of freezing tolerance in cold-hardy winter wheat. Plant Cell Physiol. 35, 175-182.

    1995

    Björk, J., Lundberg, S., and Backman, L. (1995). Characterization of the binding of calmodulin to non-erythroid spectrin. Eur. J. Cell Biol. 66, 200-204. Cohen, L.M., Eiteman, M.A., and Gainer, J.L. (1995). A model to predict the partition coefficients of amino acids in PEG/salt aqueous two-phase systems. Sep. Sci. Technol. 30, 225-237. Effing, J.J. and Kwak, J.C.T. (1995). Photoswitchable phase separation in hydrophobically modified poly(acrylamide)/surfactant systems. Angew. Chem. 34, 88-90. Guillemet, F. and Piculell, L. (1995). Interactions in aqueous mixtures of hydrophobically modified polyelectrolyte and oppositely charged surfactant. Mixed micelle formation and asso- ciative phase separation. J. Phys. Chem. 99, 9201-9209. Johansson, F., Olbe, M., Sommarin, M., and Larsson, C. (1995). Brij 58, a polyoxyethylene acyl ether, creates membrane vesicles of uniform sidedness. A new tool to obtain inside-out (cytoplasmic side-out) plasma membrane vesicles. Plant J. 7, 165-173. Justice, J.M., Murtagh, J.J., Jr., Moss, J., and Vaughan, M. (1995). Hydrophobicity and subunit interactions of rod outer segment proteins investigated using Triton X-114 phase partitioning. J. Biol. Chem. 270, 17970-17976. Ko, Y.-G. and Thompson, G.A., Jr. (1995). Purification of glycosylphosphatidylinositol-anchored proteins by modified Triton X-114 partitioning and preparative gel electrophoresis. Anal. Biochem. 224, 166-172. Kuboi, R., Umakoshi, H., and Komasawa, I. (1995). Extractive cultivation of Escherichia coli using poly(ethylene glycol)/phosphate aqueous two-phase systems to produce intracellular beta-galactosidase. Biotechnol. Prog. 11, 202-207. Liu, C., Lomakin, A., Thurston, G.M., Hayden, D., Pande, A., Pande, J., Ogun, O., Asherie, N., and Benedek, G.B. (1995). Phase separation in multicomponent aqueous-protein solutions. J. Phys. Chem. 99, 454-461. Lucas, L., García-Pérez, A.-I., Jimeno, P., Pérez, M.T., Pinilla, M., Sancho, P., and Luque, J. (1995). Surface properties of crosslinked erythrocytes as studied by counter-current distribution in aqueous polymer two-phase systems. J. Chromatogr. B 664, 137-144. Lue, L. and Blankschtein, D. (1995). Application of integral equation theories to predict the structure, thermodynamics, and phase behavior of water. J. Chem. Phys. 102, 5427-5437. Luther, J.R. and Glatz, C.E. (1995). Genetically engineered charge modifications to enhance protein separation in aqueous two-phase systems: Charge directed partitioning. Biotechnol. Bioeng. 46, 62-68. Minuth, T., Thömmes, J., and Kula, M.-R. (1995). Extraction of cholesterol oxidase from Nocardia rhodochrous using a nonionic surfactant-based aqueous two-phase system. J. Biotechnol. 38, 151-164. Miranda, M.V., Fernández Lahore, M., and Cascone, O. (1995). Horseradish peroxidase extraction and purification by aqueous two-phase partition. Appl. Biochem. Biotechnol. 53, 147-154. Pande, J., Lomakin, A., Fine, B., Ogun, O.O., Sokolinski, I., and Benedek, G.B. (1995). Oxidation of gammaII-crystallin solutions yields dimers with a high phase separation temperature. Proc. Natl. Acad. Sci. USA 92, 1067-1071. Persson, A. and Jergil, B. (1995). The purification of membranes by affinity partitioning. FASEB J., in press. Rogers, R.D., Bond, A.H., Bauer, C.B., Zhang, J., Rein, S.D., Chomko, R.R., and Roden, D.M. (1995). Partitioning behavior of 99Tc and 129I from simulated Hanford tank wastes using polyethylene glycol-based aqueous biphasic systems. Solvent Extr. Ion Exch. 13, 689-713. Rogers, R.D. and Eiteman, M.A., eds. (1995). Aqueous Biphasic Separations: Biomolecules to Metal Ions. Plenum, New York, NY. In press. Rogers, R.D., Zhang, J., Bond, A.H., Bauer, C.B., Jezl, M.L., and Roden, D.M. (1995). Selective and quantitative partitioning of pertechnetate in polyethylene-glycol based aqueous biphasic systems. Solvent Extr. Ion Exch. 13, 665-688. Schluck, A., Maurer, G., and Kula, M.-R. (1995). The influence of electrostatic interactions on partition in aqueous polyethylene glycol/dextran biphasic systems: Part II. Biotechnol. Bioeng. 47, 252-260. Shibusawa, Y., Chiba, T., Matsumoto, U., and Ito, Y. (1995). Countercurrent chromatography isolation of high- and low-density lipoprotein fractions from human serum. In Modern Countercurrent Chromatography ACS Symposium Series No. 593 (W.D. Conway and R.J. Petroski, eds.) pp. 119-128. American Chemical Society, Washington, D.C. Shibusawa, Y., Mugiyama, M., Matsumoto, U., and Ito, Y. (1995). Complementary use of counter-current chromatography and hydroxyapatite chromatography for the separation of three main classes of lipoproteins from human serum. J. Chromatogr. B 664, 295-301. Staub, U., Polivka, H., and Gross, H.J. (1995). Two rapid microscale procedures for isolation of total RNA from leaves rich in polyphenols and polysaccharides: Application for sensitive detection of grapevine viroids. J. Virol. Methods 52, 209-218. Thuresson, K., Karlström, G., and Lindman, B. (1995). Phase diagrams of mixtures of a nonionic polymer, hexanol, and water. An experimental and theoretical study of the effect of hydrophobic modification. J. Phys. Chem. 99, 3823-3831. Walter, H. and Brooks, D.E. (1995). Hypothesis: Phase separation in cytoplasm, due to macromolecular crowding, is the basis for microcompartmentation. FEBS Lett. 361, 135-139. Walter, H. and Widen, K.E. (1995). Differential electrophoretic behavior in aqueous polymer solutions of red blood cells from Alzheimer patients and from normal individuals. Biochim. Biophys. Acta, 1234, 184-190. Wingren, C. and Hansson, U.-B. (1995). A new approach to examine conformational changes occurring upon binding of ligand by biomolecules. Biochim. Biophys. Acta 1244, 209-215. Wollenberger, L., Weibull, C., and Albertsson, P.-Å. (1995). Further characterization of the chloroplast grana margins: the non-detergent preparation of granal Photosystem I cannot reduce ferredoxin in the absence of NADP+ reduction. Biochim. Biophys. Acta 1230, 10-22. Yang, J.-M., Chen, P.-M., Lin, P.-C., and Chu, I.-M. (1995). Fractionation of leukemic cells in aqueous two-phase systems using countercurrent chromatographic technique. J. Liquid Chromatogr. 18, 1757-1766. Zaslavsky, B.Yu. (1995). Aqueous Two-Phase Partitioning: Physical Chemistry and Bioanalytical Applications Marcel Dekker, New York, NY. Zijlstra, G.M., De Gooijer, C.D., Tramper, J., and Van der Pol, L.A. (1995). Design of aqueous two-phase systems supporting animal cell growh: A first step towards extractive bioconversions. Enzyme Microb. Technol., submitted for publication.

    1996

    Cabezas, H. (1996). A review of the theory of aqueous two-phase systems. I. Phase formation. Submitted for publication. Walter, H., Nash, G.B., Ascher, G.S., and Meiselman, H.J. (1996). The surface properties of irreversibly sickled cells differ from those of the bulk of sickle cells. Studies by partitioning in aqueous phase systems. J. Chromatogr. B, in press. Zijlstra, G.M., Michielsen, M., De Gooijer, C.D., Van der Pol, L.A., and Tramper, J. (1996). Hybridoma and CHO cell partitioning in aqueous two-phase systems. Biotechnol. Prog., submitted for publication.