Effect of Confinement on Membrane Undulation in a Swollen Lamellar Phase

• Yamada Norifumi L.

  Graduate School of Bio-Sphere Science, Hiroshima University Department of Physics, Kyoto University

• Takeda Takayoshi

  Faculty of Integrated Arts and Sciences, Hiroshima University

• Kato Katsuya

  Graduate School of Bio-Sphere Science, Hiroshima University

• Nagao Michihiro

  Institute for Solid State Physics, The University of Tokyo

• Seto Hideki

  Department of Physics, Kyoto University

抄録

We have investigated a static structure and membrane undulation in a swollen lamellar phase by small-angle neutron scattering and neutron spin echo (NSE). The effective viscosity, estimated by NSE data analysis using Zilman and Granek’s theory [Phys. Rev. Lett. 77 (1996) 4788], was larger than the bare viscosity of the solvent, and increased with decreasing lamellar repeat distance. A theory given by Gov et al. [Phys. Rev. E 70 (2004) 011104] for hydrodynamics in confined fluid membranes could explain the tendency of NSE results. This indicates that the interference from neighbouring membranes neglected in Zilman and Granek’s theory should be considered in analyzing the membrane dynamics in the swollen lamellar phase from the NSE data.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 74 (3), 875-877, 2005

  一般社団法人 日本物理学会

キーワード

• undulation
• effective viscosity
• membrane
• lamellar phase
• NSE

詳細情報

• CRID: 1390001204186048896
• NII論文ID: 110001979461
• NII論文ID: 210000105904
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.74.875
• BIBCODE: 2005JPSJ...74..875Y
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 7282569
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7282569
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.74.875
• 本文言語コード: en
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