Folding and unfolding kinetics of a single semiflexible polymer

Details Folding and unfolding kinetics of a single semiflexible polymer Folding and unfolding kinetics of a single semiflexible polymer

2008-04-17

arxiv.org/abs/0804.2782v1

Physics

Condensed Matter

Soft Condensed Matter

12 pages, 10 figures

Scientific paper

10.1103/PhysRevE.77.061805

We theoretically investigate the kinetics of the folding transition of a single semiflexible polymer. In the folding transition, the growth rate decrease with an increase in the number of monomers in a collapsed domain, suggesting that the main contribution to dissipation is from the motion of the domain. In the unfolding transition, dynamic scaling exponents, 1/8 and 1/4, were determined for disentanglement and relaxation steps, respectively. We performed Langevin dynamics simulations to test our theory. It is found that our theory is in good agreement with simulations. We also propose the kinetics of the transitions in the presence of the hydrodynamic interaction.

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