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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.
1996
发表期刊PHYSICAL REVIEW E
ISSN1063-651X
卷号54期号:3页码:2816-2826
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.
部门归属ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
关键词Red Blood-cell Axisymmetrical Vesicles Phospholipid-vesicles Curvature Elasticity Bilayer Vesicles Fluid Membranes Bending Energy Erythrocyte Transitions Instability
学科领域Physics
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收录类别SCI
WOS记录号WOS:A1996VK26500087
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被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12591
专题理论物理所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.
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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.
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