Dissipative particle dynamics studies on the self-assembling dynamics of the peptide amphiphiles

Taiga Seki, Noriyoshi Arai, Taku Ozawa, Tomoko Shimada, Kenji Yasuoka, Atsushi Hotta

研究成果: Conference contribution

抄録

A coarse-grained model of peptide amphiphiles (PA) dissolved in aqueous solution was presented, where the effects of PA concentration, temperature and shear stress upon the selfassembly of PA were numerically studied by dissipative particle dynamics (DPD) simulation. We technically investigate the repulsion parameter ahw which indicates the repulsion force between the hydrophilic head of PA and water molecules, hence, at the same time, indicating the change in temperature. It was found that ahw played an important role in the self-assembly dynamics and in the resulting micro-structures of PA. By imposing shear strain on the simulation system, the formation of wormlike PA micelles was accelerated. The simulation results were in good agreement with our previous experimental results and the mechanism of shear-induced transition was proposed.

本文言語English
ホスト出版物のタイトルDesign, Fabrication, and Self Assembly of "Patchy" and Anisometric Particles
出版社Materials Research Society
ページ143-149
ページ数7
ISBN(印刷版)9781615677689
DOI
出版ステータスPublished - 2008
イベント2008 MRS Fall Meeting - Boston, MA, United States
継続期間: 2008 12 12008 12 5

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1135
ISSN(印刷版)0272-9172

Other

Other2008 MRS Fall Meeting
国/地域United States
CityBoston, MA
Period08/12/108/12/5

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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