徳島大学 教育・研究者情報データベース(EDB)

1. 越山 顕一朗([徳島大学.大学院社会産業理工学研究部.理工学域.機械科学系.エネルギーシステム分野]/[徳島大学.理工学部.理工学科.機械科学コース.エネルギーシステム講座]/[徳島大学.先端技術科学教育部.知的力学システム工学専攻.機械創造システム工学コース.機械システム講座])

   役割	任意	(英) Corresponding author (日) 責任著者
   貢献度	任意
   学籍番号	推奨

2. (英) Kodama Tetsuya

   役割	任意
   貢献度	任意
   学籍番号	推奨

3. (英) Yano Takeru

   役割	任意
   貢献度	任意
   学籍番号	推奨

4. (英) Fujikawa Shigeo

   役割	任意
   貢献度	任意
   学籍番号	推奨

(英) Molecular dynamics simulation of structural changes of lipid bilayers induced by shock waves: Effects of incident angles.

(英) Unsteady and nonequilibrium molecular dynamics simulations of the response of dipalmitoylphosphatidylcholine (DPPC) bilayers to the shock waves of various incident angles are presented. The action of an incident shock wave is modeled by adding a momentum in an oblique direction to water molecules adjacent to a bilayer. We thereby elucidate the effects of incident shock angles on (i) collapse and rebound of the bilayer, (ii) lateral displacement of headgroups, (iii) tilts of lipid molecules, (iv) water penetration into the hydrophobic region of the bilayer, and (v) momentum transfer across the bilayer. The number of water molecules delivered into the hydrophobic region is found to be insensitive to incident shock angles. The most important structural changes are the lateral displacement of headgroups and tilts of lipid molecules, which are observed only in the half of the bilayer directly exposed to a shock wave for all incident shock angles studied here. As a result, only the normal component of the added oblique momentum is substantially transferred across the bilayer. This also suggests that the irradiation by shock waves may induce a jet-like streaming of the cytoplasm toward the nucleus.

1. (英) 1,2-Dipalmitoylphosphatidylcholine
2. (英) Hydrophobic and Hydrophilic Interactions
3. (英) Lipid Bilayers
4. (英) Models, Chemical
5. (英) Stress, Mechanical
6. (英) Water

1. (英) PublicationType: Journal Article

2. (英) PublicationType: Research Support, Non-U.S. Gov't