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Iwamoto, Mitsumasa; Yamamoto, Tetsuya; Liu, Fei; Ou-Yang, Zhong-Can; Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 S3-33 O Okayama, Tokyo 1528552, Japan
Shear-induced domain deformation in a tilted lipid monolayer: From circle to ellipse and kinked stripe
发表期刊PHYSICAL REVIEW E
关键词Air-water-interface X-ray-diffraction Langmuir Monolayers Phase-transitions Fluorescence Microscopy Molecular-orientation Polar-molecules Liquid-crystals Flow Relaxation
摘要The shear-induced domain deformation in a lipid monolayer comprised of tilted molecules is studied as a mechanical balance between surface pressure, line tension, electrostatic energy due to the dipole-dipole interaction, hexatic-elastic stress, and viscous stress. It is found that a simple shear can deform a circular domain into an elliptic shape with the long axis inclined 45 degrees from the shear direction. The "ellipse" is elongated in the long axis as shear rate increases, and evolves to a straight or kinked stripe, which was observed as a "shear band" by Fuller's group [Science 274, 233 (1996)] and "avalanche-like fronts" by Schwaltz's group [Langmuir 17, 3017 (2001)], at a threshold shear rate. The propagation of stripe-shaped domains is discussed in the context of electrostatic energy. The dependence of the threshold shear rate on surface pressure is predicted in good agreement with observation and can be used to estimate surface viscosity. The shear-induced domain deformation is maintained by the effect of the lattice elastic stress when shear ceases.
2008
ISSN1539-3755
卷号78期号:5页码:-
学科领域Physics
收录类别SCI
项目资助者Ministry of Education, Culture, Sports, Science, and Technology (MEXT)[19206034]; Japan Society for the Promotion of Science (JSPS) ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT)[19206034]; Japan Society for the Promotion of Science (JSPS) ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT)[19206034]; Japan Society for the Promotion of Science (JSPS) ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT)[19206034]; Japan Society for the Promotion of Science (JSPS)
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被引频次:1[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/311006/5445
专题理论物理所科研产出_SCI论文
通讯作者Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 S3-33 O Okayama, Tokyo 1528552, Japan
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Iwamoto, Mitsumasa,Yamamoto, Tetsuya,Liu, Fei,et al. Shear-induced domain deformation in a tilted lipid monolayer: From circle to ellipse and kinked stripe[J]. PHYSICAL REVIEW E,2008,78(5):-.
APA Iwamoto, Mitsumasa,Yamamoto, Tetsuya,Liu, Fei,Ou-Yang, Zhong-Can,&Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 S3-33 O Okayama, Tokyo 1528552, Japan.(2008).Shear-induced domain deformation in a tilted lipid monolayer: From circle to ellipse and kinked stripe.PHYSICAL REVIEW E,78(5),-.
MLA Iwamoto, Mitsumasa,et al."Shear-induced domain deformation in a tilted lipid monolayer: From circle to ellipse and kinked stripe".PHYSICAL REVIEW E 78.5(2008):-.
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