The shape of pinned forced polymer loops

Huang W, Zaburdaev V (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Soft Matter Royal Society of Chemistry

Book Volume: 15

Pages Range: 1785-1792

Journal Issue: 8

DOI: 10.1039/c8sm02357c

Abstract

Loop geometry is a frequent encounter in synthetic and biological polymers. Here we provide an analytical theory to characterize the shapes of polymer loops subjected to an external force field. We show how to calculate the polymer density, gyration radius and its distribution. Interestingly, the distribution of the gyration radius shows a non-monotonic behavior as a function of the external force. Furthermore, we analyzed the gyration tensor of the polymer loop characterizing its overall shape. Two parameters called asphericity and the nature of asphericity derived from the gyration tensor, along with the gyration radius, can be used to quantify the shape of polymer loops in theory and experiments.

Authors with CRIS profile

Vasily Zaburdaev Lehrstuhl für Mathematik in den Lebenswissenschaften

Involved external institutions

Max-Planck-Institut für Physik komplexer Systeme (MPI PKS) / Max Planck Institute for the Physics of Complex Systems DE Germany (DE)

How to cite

APA:

Huang, W., & Zaburdaev, V. (2019). The shape of pinned forced polymer loops. Soft Matter, 15(8), 1785-1792. https://dx.doi.org/10.1039/c8sm02357c

MLA:

Huang, Wenwen, and Vasily Zaburdaev. "The shape of pinned forced polymer loops." Soft Matter 15.8 (2019): 1785-1792.

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