Adhesion of multicomponent vesicle membranes.
Adhesion of multicomponent vesicle membranes.
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DOI：
10.1103/physreve.81.041919
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发表时间：
2009-12
期刊：
影响因子：
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通讯作者：
Yanxiang Zhao;S. Das;Q. Du
中科院分区：
文献类型：
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作者：
Yanxiang Zhao;S. Das;Q. Du
在这项工作中，我们研究了多组分囊泡膜的粘附平坦和弯曲的基板，基于传统的Helfrich弯曲能的多组分囊泡和不同形式的粘附势。相场制剂用于描述囊泡的不同组分。对于轴对称的情况下，一些有代表性的平衡囊泡的形状进行计算，并提出了一些能量图，揭示了依赖于各种参数，包括弯曲模量和自发曲率以及粘附势常数的计算形状和解决方案的分支。我们的计算也证实了最近的实验观察，粘附可能会促进相分离的双组分囊泡膜。
In this work, we study the adhesion of multicomponent vesicle membrane to both flat and curved substrates, based on the conventional Helfrich bending energy for multicomponent vesicles and adhesion potentials of different forms. A phase field formulation is used to describe the different components of the vesicle. For the axisymmetric case, a number of representative equilibrium vesicle shapes are computed and a few energy diagrams are presented which reveal the dependence of the calculated shapes and solution branches on various parameters including both bending moduli and spontaneous curvatures as well as the adhesion potential constants. Our computation also confirms a recent experimental observation that the adhesion may promote phase separation in two-component vesicle membranes.