The Journal of Physical Chemistry B · 2009 · 23 citations · 16 references
Natural SciencesBiophysicsChemistryElectrochemistryMembrane BiophysicsPhysical ChemistryAqueous Two-phase SystemsElectrolyte SolutionsIon PermeationIon Transport In ElectrolytesMembrane Phase BehaviorPartition CoefficientActive Ion TransportElectrolyte Concentration EffectsIon Binding ThermodynamicsIon Binding To MembranesIon Partitioning In MembranesIon PumpsIon-specific EffectsThermodynamics Of Electrolyte Solutions
In two-phase finite volume systems of electroneutral phospholipids, the electrolyte concentration is different in the two phases. The partitioning is highly anion-specific, a phenomenon not accounted for by classical electrolyte theories. It is explained if ionic dispersion forces that lead to specific ion binding are taken into account. The mechanism provides a contribution to active ion pumps not previously considered.
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