Deviatoric spontaneous curvature of lipid membranes induced by Siamese macromolecular cosurfactants
Department of Chemical Engineering, University of California, Santa Barbara, California
2 Materials Department, University of California, Santa Barbara, California 93106, USA
Accepted: 20 June 1996
We study the anisotropy of the spontaneous curvature induced by a membrane inclusion consisting of two geminated polymer-lipid molecules. The anisotropy is found to be of the order of the mean spontaneous curvature. Such a strong anisotropy yields a significant reduction of the membrane bending rigidity K as well as an increase of the saddle splay , which might lead to curvature instabilities.
PACS: 61.25.Hq – Macromolecular and polymer solutions; polymer melts / 68.10.Et – Interface elasticity, viscosity, and viscoelasticity / 82.70.-y – Disperse systems
© EDP Sciences, 1996