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首页> 外文期刊>Journal of Biomechanics >Cylindrical shapes of closed lipid bilayer structures correspond to an extreme area difference between the two monolayers of the bilayer.
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Cylindrical shapes of closed lipid bilayer structures correspond to an extreme area difference between the two monolayers of the bilayer.

机译：封闭的脂质双层结构的圆柱形状对应于双层的两个单层之间的极端面积差异。

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摘要

The shapes of extreme area difference between the outer and the inner layer (deltaA) of the closed lipid bilayer structures at fixed membrane area (A) and fixed volume (V) are determined by stating and analytically solving a variational problem for axisymmetric shapes. It is shown that the spheres with at most two different radii and the cylinder are the solutions of this variational problem. The cylinder ended by a hemisphere on each end is the shape combined from these solutions and is therefore, itself the shape of the extreme deltaA at fixed V and A. The related cylindrical shapes of stearoyl-oleoyl-phosphocholine vesicles are shown.
机译：封闭脂质双层结构在固定膜面积（A）和固定体积（V）的外层与内层之间的极端面积差形状（deltaA）是通过陈述并分析解决轴对称形状的变体问题来确定的。结果表明，具有至多两个不同半径的球体和圆柱体是此变分问题的解决方案。由这些解决方案组合而成的圆柱体的两端是半球，因此，其本身就是在固定V和A处的最大deltaA的形状。图中显示了硬脂酰-油酰基-磷酸胆碱囊泡的相关圆柱形状。

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