Department of Physics Papers

Document Type

Journal Article

Date of this Version

6-21-2006

Abstract

The formation of kinks in a loop of bundled polyelectrolyte filaments is analyzed in terms of the thermal fluctuations of charge density due to polyvalent counterions adsorbed on the polyelectrolyte filaments. It is found that the counterion-mediated attraction energy of filaments depends on their bending. By consideration of curvature elasticity energy and counterion-mediated attraction between polyelectrolyte filaments, the characteristic width of the kink and the number of kinks per loop is found to be in reasonable agreement with existing experimental data for rings of bundled actin filaments.

Comments

Suggested Citation:
Cēbers, A. Dogic, Z. and Janmey, P.A. (2006). Counterion-Mediated Attraction and Kinks on Loops of Semiflexible Polyelectrolyte Bundles. Physical Review Letters 96, 247801.

© 2006 American Physical Society
http://dx.doi.org/10.1103/PhysRevLett.96.247801

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Date Posted: 14 July 2011

This document has been peer reviewed.