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

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

2004-10-09

arxiv.org/abs/cond-mat/0410226v4

European Physical Journal E, 17, 485-491 (2005)

Physics

Condensed Matter

Soft Condensed Matter

19 pages, 5 figures

Scientific paper

10.1140/epje/i2005-10023-9

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.

Affiliated with

Also associated with

No associations

Rating

Different pathways in mechanical unfolding/folding cycle of a single semiflexible polymer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Different pathways in mechanical unfolding/folding cycle of a single semiflexible polymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Different pathways in mechanical unfolding/folding cycle of a single semiflexible polymer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-217587