Simulation study on structure formation in biomembranes under shear flow
| Project/Area Number |
24740285
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Biophysics/Chemical physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SHIBA Hayato 東京大学, 物性研究所, 助教 (20549563)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | オニオン相 / 粗視化分子動力学法 / 界面活性剤 / 剪断流 / 欠陥ダイナミクス / 並列計算 / 流体力学的計算手法 / リーク構造 / マルチラメラ状態 / 構造レオロジー / 粗視化分子動力学 / 超並列計算 / 国際情報交換（ドイツ） |
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| Research Abstract |
Multilamellar layers of surfactant membranes often form onion structures composed of unit cells of spherically multi-layered membranes. In this project, a highly-coarse-grained model with explicit solvent has been employed to treat this problem. We have done large-scale parallel simulations of the model to simulate a sub-micrometer-scale system, to allow large-scale undulation and deformation. In the simulations, the layers exhibited roll-like structures, which are in qualitative consistence with a precursor state to the onion phase observed in the previous experiments. We drew the dynamical phase diagram as a function of the membrane volume fraction and the shear rate.
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Report
(3 results)
Research Products
(22 results)
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[Presentation] 剪断流下の脂質膜系の構造形成2012
Author(s)
芝 隼人、野口博司、Gerhard Gompper
Organizer
第３回CMSI研究会～超並列計算が拓く新しい計算物質科学～
Place of Presentation
自然科学研究機構岡崎コンファレンスセンター（愛知県岡崎市）
Related Report
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