Shape deformation and circle instability in two-dimensional lipid domains by dipolar force: A shape- and size-dependent line tension model

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	Shape deformation and circle instability in two-dimensional lipid domains by dipolar force: A shape- and size-dependent line tension model
	Zhong-can, OY; Iwamoto, M; Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 1528552, Japan.
刊名	PHYSICAL REVIEW LETTERS
	2004
卷号	93 期号:20 页码:-
关键词	Langmuir Monolayers Phase-transitions Pattern-formation Polar-molecules Isotropic-phase Crystals
ISSN号	0031-9007
英文摘要	The dipolar energy of a solid monolayer domain surrounded by a fluid phase at an air-water interface is derived approximately as a sum of an additionally negative line tension and a curvature-elastic energy at the boundary. Variation of the domain energy yields an equilibrium domain shape equation. The obvious solutions of the domain shape equation clearly predict a circle, torus, D-form, S-form, and serpentine manner shape found experimentally, depending on the difference in the Gibbs free energy between the solid and fluid phases and the total line tension. Analysis of linear instability for a circle with a fixed area shows that, above a threshold size, the circle can be deformed into an m-sided quasipolygon. The good agreement with the observation and numerical calculation reported by Lee and McConnell [J. Phys. Chem. 91, 9532 (1993)] shows the quantitative validity of the present theory.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000225068800041
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/13970]
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	Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 1528552, Japan.
推荐引用方式 GB/T 7714	Zhong-can, OY,Iwamoto, M,Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 1528552, Japan.. Shape deformation and circle instability in two-dimensional lipid domains by dipolar force: A shape- and size-dependent line tension model[J]. PHYSICAL REVIEW LETTERS,2004,93(20):-.
APA	Zhong-can, OY,Iwamoto, M,&Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 1528552, Japan..(2004).Shape deformation and circle instability in two-dimensional lipid domains by dipolar force: A shape- and size-dependent line tension model.PHYSICAL REVIEW LETTERS,93(20),-.
MLA	Zhong-can, OY,et al."Shape deformation and circle instability in two-dimensional lipid domains by dipolar force: A shape- and size-dependent line tension model".PHYSICAL REVIEW LETTERS 93.20(2004):-.