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Non-equilibrium thermodynamics of electrokinetic effects across mixed-lipid membranes

Authors
Journal
Journal of Membrane Science
0376-7388
Publisher
Elsevier
Publication Date
Volume
29
Issue
3
Identifiers
DOI: 10.1016/s0376-7388(00)81264-8
Disciplines
  • Physics

Abstract

Abstract Non-equilibrium thermodynamics of electrokinetic effects, like hydraulic permeability, electroosmosis, streaming potential and current of water across membranes containing lipid pairs, has been studied. The lipid pairs chosen were cephalin + phosphatidyl serine (serine), cephalin + lecithin, cephalin + phosphatidyl inositol (inositol), serine + inositol, lecithin + serine and lecithin + inositol. L coefficients for water/mixed-lipid systems have been calculated and near equality of the cross coefficients L 12 and L 21 proved the validity of the Onsager reciprocity relation. All the electrokinetic effects have been found to differ in magnitude from those obtained for single-lipid membranes. Efficiency of electrokinetic energy conversion has also been calculated.

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