Different pathways in mechanical unfolding/folding cycle of a single semiflexible polymer

N. Yoshinaga, K. Yoshikawa, T. Ohta

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Kinetics of conformational change of a semiflexible polymer under mechanical external field were investigated with Langevin dynamics simulations. It is found that a semiflexible polymer exhibits large hysteresis in mechanical folding/unfolding cycle even with a slow operation, whereas in a flexible polymer, the hysteresis almost disappears at a sufficiently slow operation. This suggests that the essential features of the structural transition of a semiflexible polymer should be interpreted at least on a two-dimensional phase space. The appearance of such large hysteresis is discussed in relation to different pathways in the loading and unloading processes. By using a minimal two-variable model, the hysteresis loop is described in terms of different pathways on the transition between two stable states.

本文言語English
ページ(範囲)485-491
ページ数7
ジャーナルEuropean Physical Journal E
17
4
DOI
出版ステータスPublished - 2005 8
外部発表はい

ASJC Scopus subject areas

  • バイオテクノロジー
  • 生物理学
  • 化学 (全般)
  • 材料科学(全般)
  • 表面および界面

フィンガープリント

「Different pathways in mechanical unfolding/folding cycle of a single semiflexible polymer」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル