Fluid-membrane tethers: Minimal surfaces and elastic boundary layers
Fluid-membrane tethers: Minimal surfaces and elastic boundary layers
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DOI：
10.1103/physreve.65.041901
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发表时间：
2002-04-01
影响因子：
2.4
通讯作者：
Goldstein, RE
中科院分区：
文献类型：
--
作者：
Powers, TR;Huber, G;Goldstein, RE
薄的圆柱形系链是常见的脂质双层膜结构，出现在从人工囊泡的显微操作实验到高尔基体的动态结构的情况下。我们研究的形状和形成的系绳的经典肥皂膜问题，这是适用于膜盘的情况下，张力受到一个点力。对于足够大的位移，在力的施加点附近，从弹性边界层形成系绳。给出了膜形状各方面的分析结果。
Thin cylindrical tethers are common lipid bilayer membrane structures, arising in situations ranging from micromanipulation experiments on artificial vesicles to the dynamic structure of the Golgi apparatus. We study the shape and formation of a tether in terms of the classical soap-film problem, which is applied to the case of a membrane disk under tension subject to a point force. A tether forms from the elastic boundary layer near the point of application of the force, for sufficiently large displacement. Analytic results for various aspects of the membrane shape are given.