Kinetically driven helix formation during the homopolymer collapse process

Details Kinetically driven helix formation during the homopolymer collapse process Kinetically driven helix formation during the homopolymer collapse process

2008-03-07

arxiv.org/abs/0803.1070v1

Phys. Rev. E 77, 020802(R) (2008)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevE.77.020802

Using Langevin simulations, we find that simple 'generic' bead-and-spring homopolymer chains in a sufficiently bad solvent spontaneously develop helical order during the process of collapsing from an initially stretched conformation. The helix formation is initiated by the unstable modes of the straight chain, which drive the system towards a long-lived metastable transient state. The effect is most pronounced if hydrodynamic interactions are screened.

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