Study of LBM interactions with some surface-active substances by the method of capacity minimization

The variation in intramembrane potential resulting from the asymmetry of the surface potentials of artificial lipid bilayer membranes (LBMs), formed by phospholipids (phosphatidylcholin and phosphatidylethanolamine) in contact with non-ionic, cationic, anionic and zwitterionic surfactants was follow...

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Bibliographic Details
Published in:Bioelectrochemistry and Bioenergetics 1994-06, Vol.34 (1), p.19-24
Main Authors: Sužnjević, D., Grigorijev, P.A., Vučelić, D.
Format: Article
Language:English
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Summary:The variation in intramembrane potential resulting from the asymmetry of the surface potentials of artificial lipid bilayer membranes (LBMs), formed by phospholipids (phosphatidylcholin and phosphatidylethanolamine) in contact with non-ionic, cationic, anionic and zwitterionic surfactants was followed by the method of capacity minimization. The interaction of different types of surfactants with LBM is specific in nature. The dependence of the shapes of adsorption isotherms constructed from the capacity minimum potentials on surfactant concentration is found to be strongly influenced by the ionic form of the surface-active substances used.
ISSN:0302-4598
DOI:10.1016/0302-4598(94)80004-9