A coil-globule transition of a semiflexible polymer driven by the addition of spherical particles

Details A coil-globule transition of a semiflexible polymer driven by the addition of spherical particles A coil-globule transition of a semiflexible polymer driven by the addition of spherical particles

1997-11-03

arxiv.org/abs/cond-mat/9711011v1

Phys.Rev. E58 (1998) 724-728

Physics

Condensed Matter

Soft Condensed Matter

12 pages, 4 figures

Scientific paper

10.1103/PhysRevE.58.724

The phase behaviour of a single large semiflexible polymer immersed in a suspension of spherical particles is studied. All interactions are simple excluded volume interactions and the diameter of the spherical particles is an order of magnitude larger than the diameter of the polymer. The spherical particles induce a quite long ranged depletion attraction between the segments of the polymer and this induces a continuous coil-globule transition in the polymer. This behaviour gives an indication of the condensing effect of macromolecular crowding on DNA.

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