Fluidity-dependence of membrane adhesiveness can be explained by thermotropic shifts in surface potential.
It is demonstrated that the transition of both dimyristoylphosphatidylcholine (DMPC) and dipalmitoylphosphatidylcholine (DPPC) from the gel to liquid-crystalline phase is paralleled by a pronounced increase in the negative surface potential of liposomes composed of either lipid. The Derjaguin-Landau-Verwey-Overbeek (DLVO) theory is applied to show that this phenomenon can serve as a simple explanation of diverse adhesive properties of solid and fluid lipid bilayers.
D015060:1,2-Dipalmitoylphosphatidylcholine; D002122:Calcium Chloride / Q000494:pharmacology; D002448:Cell Adhesion; D004134:Dimyristoylphosphatidylcholine; D004563:Electrochemistry; D006358:Hot Temperature; D008051:Lipid Bilayers / Q000502:physiology*; D008081:Liposomes; D008560:Membrane Fluidity; D013499:Surface Properties
D008051:Lipid Bilayers; D008081:Liposomes; D015060:1,2-Dipalmitoylphosphatidylcholine; D002122:Calcium Chloride; D004134:Dimyristoylphosphatidylcholine