6533b858fe1ef96bd12b6596

RESEARCH PRODUCT

Double layer potential and degree of dissociation in charged lipid monolayers

Salvador MafeVicente M. AguilellaJosé A. Manzanares

subject

IonsChemistryStereochemistryAirOrganic ChemistryTemperaturePhospholipidCell BiologyHydrogen-Ion ConcentrationLipid monolayerBiochemistryElectrolytesMembrane Lipidschemistry.chemical_compoundModels ChemicalChemical physicsMonolayerPolarlipids (amino acids peptides and proteins)Double layer potentialLipid moleculeMolecular BiologyPhospholipidsStearic Acids

description

Abstract One of the contributions to the surface potential in charged phospholipid monolayers at air–water interfaces is the double layer potential. In this note several misconceptions found in the literature concerning the relationship between the double layer potential and the degree of dissociation of the lipid polar headgroups are critically analyzed. The deviations of the double layer potential measurements from the Gouy–Chapman theory observed by several authors are explained by taking into account the dependence of the degree of dissociation with concentration, area per lipid molecule and pH.

yearjournalcountryeditionlanguage
2000-05-24Chemistry and Physics of Lipids
https://doi.org/10.1016/s0009-3084(00)00123-7