title: Acid-base equilibria at interface separating electrolyte solution and lipid bilayer formed from phosphatidylcholine.
abstract: The dependence of the interfacial tension of a lipid membrane formed from phosphatidylcholine on the pH of the aqueous solution has been studied. The model describing the H(+) and OH(-) ions adsorption in the bilayer lipid surface has been presented in this work. We take suitable equations to describe the dependence of interfacial tension of a lipid bilayer membrane on H(+) and OH(-) ion concentrations. A theoretical equation is derived to describe this dependence in the whole pH range.
authors.affiliation: Laboratory of Interfacial Electrochemistry, Faculty of Chemistry, University of Warsaw, Pasteur St. 1, 02-093 Warsaw, Poland.
authors.forename: Aneta D
authors.initials: AD
authors.lastname: Petelska
authors.forename: Zbigniew A
authors.initials: ZA
authors.lastname: Figaszewski
mesh_terms: D000136:Acid-Base Equilibrium; D004573:Electrolytes / Q000737:chemistry*; D006878:Hydroxides / Q000737:chemistry; D008051:Lipid Bilayers / Q000737:chemistry*; D008563:Membrane Lipids / Q000737:chemistry; D008962:Models, Theoretical; D010713:Phosphatidylcholines / Q000737:chemistry*; D013500:Surface Tension; D014867:Water / Q000737:chemistry
chemical_list: D004573:Electrolytes; D006878:Hydroxides; D008051:Lipid Bilayers; D008563:Membrane Lipids; D010713:Phosphatidylcholines; D014867:Water; C031356:hydroxide ion