膜的弹性及膜内含物之间的相互作用：形变、膨胀、倾斜与倾斜差模之间的相互作用
摘要
发展了针对膜的形状、膨胀和脂质倾斜的现象学 Landau 弹性理论。形变模与单层膜倾斜之和耦合，膨胀模与单层膜倾斜之差耦合。讨论了膜内含物在规则数组中的相互作用。导致膜厚度改变或由于其凸面或凹面形状引起倾斜差的内含物，会产生由膨胀引起的吸引和由倾斜差引起的排斥。 resulting interaction can stabilize 2D crystal phases, with the possible coexistence of different lattice spacings when the dilation-tilt-difference coupling is large. Inclusions favoring crystals are those with either a long-convex or a short-concave hydrophobic core. Inclusions inducing a local membrane curvature due to their conical shape repel one another. At short inclusions separations, a tilt comparable with the inclusion's cone angle develops: it relaxes the membrane curvature and reduces the repulsion. At large separations the tilt vanishes, whatever the value of the shape-tilt coupling.
引用
@article{arxiv.cond-mat/9810290,
title = {Microscopic membrane elasticity and interactions among membrane inclusions: Interplay between the shape, dilation, tilt and tilt-difference modes},
author = {J. -B. Fournier},
journal= {arXiv preprint arXiv:cond-mat/9810290},
year = {2009}
}
备注
13 pages, 19 figures