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Title: Discontinuous unbinding of lipid multibilayers
Authors: Pozo-Navas, B.
Raghunathan, V.A.
Katsaras, J.
Rappolt, M.
Lohner, K.
Pabst, G.
Issue Date: 8-Jul-2003
Publisher: The American Physical Society
Citation: Physical Review Letters, 2003, Vol.91, 028101
Abstract: We have observed a discontinuous unbinding transition of lipid bilayer stacks composed of phosphatidylethanolamine and phosphatidylglycerol using x-ray diffraction. The unbinding is reversible and coincides with the main (Lbeta-->Lalpha) transition of the lipid mixture. Interbilayer interaction potentials deduced from the diffraction data reveal that the bilayers in the Lbeta phase are only weakly bound. The unbinding transition appears to be driven by an abrupt increase in steric repulsion resulting from increased thermal undulations of the bilayers upon entering the fluid Lalpha phase.
ISSN: ISSN 1079-7114 (online)
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Copyright: (2003) by the American Physical Society
Appears in Collections:Research Papers (SCM)

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