Analytical expressions for the shape of axisymmetric membranes with multiple domains

被引：6
作者：
Idema, T. [1 ]
Storm, C. [2 ,3 ]
机构：
[1] Univ Penn, Dept Astron & Astrophys, Philadelphia, PA 19104 USA
[2] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands
[3] Eindhoven Univ Technol, Inst Complex Mol Syst, NL-5600 MB Eindhoven, Netherlands
来源：
EUROPEAN PHYSICAL JOURNAL E | 2011年 / 34卷 / 07期
关键词：
INTRAMEMBRANE DOMAINS; ERYTHROCYTE-MEMBRANE; BILAYER-MEMBRANES; MOLECULAR MOTORS; EXTENSIONAL FLOW; FLUID MEMBRANES; LIPID-MEMBRANES; GIANT VESICLES; ELASTIC TETHER; LINE TENSION;
D O I：
10.1140/epje/i2011-11067-x
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Based on the Canham-Helfrich free energy, we derive analytical expressions for the shapes of axisymmetric membranes consisting of multiple domains. We give explicit equations for both closed vesicles and almost cylindrical tubes. Using these expressions, we also find the shape of a tube attached to a spherical vesicle. The resulting shapes compare well to numerical data, and our expressions can be used to easily determine membrane parameters from experimentally obtained shapes.
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页数：10
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