Bending stiffness of lipid bilayers. III. Gaussian curvature
نویسنده
چکیده
The Gaussian curvature tern in the expression for the energy density in bending of a lipid bilayer can be decomposed in two terns one symmetric and the other one antisymmetric in the principal curvatures. The symmetric tern is proportional to the square of the mean local curvature. A similar tern has exclusively been used to calculate the equilibrium shape of bilayer structures the topology of Which does not change. It is suggested that the antisymmetric tern which is proportional to the square of the deviator of the local curvature should not be neglected in such calculations.
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