Morphological Variation in a Toroid Generated from a Single Polymer Chain

Details Morphological Variation in a Toroid Generated from a Single Polymer Chain Morphological Variation in a Toroid Generated from a Single Polymer Chain

2005-04-08

arxiv.org/abs/physics/0504054v1

Physics

Biological Physics

14 pages, 3 figures

Scientific paper

10.1063/1.1944007

A single semiflexible polymer chain folds into a toroidal object under poor solvent conditions. In this study, we examined the morphological change in such a toroidal state as a function of the width and stiffness of the chain together with the surface energy, which characterizes the segmental interaction parameter. Changes in the thickness and outer/inner radius are interpreted in terms of these parameters. Our theoretical expectation corresponds to the actual morphological changes in a single giant DNA molecule as observed by electron microscopy.

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