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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
Iwamoto, M; Zhong-can, OY; Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 1528552, Japan.
2004
发表期刊PHYSICAL REVIEW LETTERS
ISSN0031-9007
卷号93期号:20页码:-
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.
部门归属Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, Japan; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Langmuir Monolayers Phase-transitions Pattern-formation Polar-molecules Isotropic-phase Crystals
学科领域Physics
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收录类别SCI
WOS记录号WOS:000225068800041
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被引频次:38[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/311006/13970
专题理论物理所SCI论文
通讯作者Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 1528552, Japan.
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Iwamoto, M,Zhong-can, OY,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 Iwamoto, M,Zhong-can, OY,&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 Iwamoto, M,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):-.
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