Polygonal shape transformation of a circular biconcave vesicle induced by osmotic pressure

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	Polygonal shape transformation of a circular biconcave vesicle induced by osmotic pressure
	Naito, H; Okuda, M; Zhongcan, OY; Naito, H , UNIV OSAKA PREFECTURE,DEPT PHYS & ELECT,GAKUEN CHO,SAKAI,OSAKA 593,JAPAN.
刊名	PHYSICAL REVIEW E
	1996
卷号	54 期号:3 页码:2816-2826
关键词	Red Blood-cell Axisymmetrical Vesicles Phospholipid-vesicles Curvature Elasticity Bilayer Vesicles Fluid Membranes Bending Energy Erythrocyte Transitions Instability
ISSN号	1063-651X
英文摘要	Polygonal shape transformation processes observed in liposomes [H. Hotani, J. Mol. Biol. 178, 113 (1984)] have been analyzed on the basis of the HeLfrich spontaneous curvature model. First. a mathematical solution for the biconcave axisymmetric vesicles [H. Naito, M. Okuda, and Z. Ou-Yang, Phys. Rev. E 47, 2304 (1993)] is derived, and then the second variation of the shape energy of the slightly deformed vesicles from the biconcave shape is calculated. After the minimization of the shape energy, it is found that the biconcave vesicle is transformed into elliptical, triangular, square, pentagonal, or other polygonal shapes above the threshold osmotic pressure difference, At a constant value of Delta V/V-0, the osmotic pressure is found to be a monotonic increasing function of lit, except for m=2, where V-0 is the initial volume of the biconcave vesicle, Delta V is the change in the volume of the deformed vesicle, and nr denotes mth polygonal deformation. It is shown that the experimental results of the polygonal shape transformation in liposomes can be well explained by the present theoretical predictions.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:A1996VK26500087
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12591]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Naito, H , UNIV OSAKA PREFECTURE,DEPT PHYS & ELECT,GAKUEN CHO,SAKAI,OSAKA 593,JAPAN.
推荐引用方式 GB/T 7714	Naito, H,Okuda, M,Zhongcan, OY,et al. Polygonal shape transformation of a circular biconcave vesicle induced by osmotic pressure[J]. PHYSICAL REVIEW E,1996,54(3):2816-2826.
APA	Naito, H,Okuda, M,Zhongcan, OY,&Naito, H , UNIV OSAKA PREFECTURE,DEPT PHYS & ELECT,GAKUEN CHO,SAKAI,OSAKA 593,JAPAN..(1996).Polygonal shape transformation of a circular biconcave vesicle induced by osmotic pressure.PHYSICAL REVIEW E,54(3),2816-2826.
MLA	Naito, H,et al."Polygonal shape transformation of a circular biconcave vesicle induced by osmotic pressure".PHYSICAL REVIEW E 54.3(1996):2816-2826.