Effect of Confinement on Membrane Undulation in a Swollen Lamellar Phase(Cross-disciplinary Physics and Related Areas of Science and Technology)
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概要
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We have investigated a static structure and membrane undulation in a swollen lamellar phase by smallangle 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.
- 2005-03-15
著者
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YAMADA Norifumi
Graduate School of Bio-Sphere Science, Hiroshima University
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NAGAO Michihiro
Institute for Solid State Physics, The University of Tokyo
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KATO Katsuya
Graduate School of Bio-Sphere Science, Hiroshima University
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Seto Hideki
Department Of Physics Kyoto University
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Takeda Takayoshi
Faculty Of General Education Hiroshima University
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