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Polymers 2014, 6(12), 2942-2960; doi:10.3390/polym6122942

Charge Inversion Effects in Electrophoresis of Polyelectrolytes in the Presence of Multivalent Counterions and Transversal Electric Fields

1
Leibniz-Institut für Polymerforschung Dresden, Hohe Str. 6, D-01069 Dresden, Germany
2
Institute of Theoretical Physics, Technische Universität Dresden, D-01062 Dresden, Germany
*
Author to whom correspondence should be addressed.
Received: 2 August 2014 / Revised: 14 November 2014 / Accepted: 20 November 2014 / Published: 4 December 2014
(This article belongs to the Special Issue Polyelectrolytes 2014)
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Abstract

By molecular dynamics simulations we investigate the transport of charged polymers in confinement, under externally applied electric fields, in straight cylinders of uniform diameter and in the presence of monovalent or multivalent counterions. The applied electric field has two components; a longitudinal component along the axis of the cylinder and a transversal component perpendicular to the cylinder axis. The direction of electrophoretic velocity depends on the polyelectrolyte length, valency of the counterions present in solution and transversal electric field value. A statistical model is put forward in order to explain these observations. View Full-Text
Keywords: molecular dynamics; polyelectrolytes; confinement; multivalent electric charges molecular dynamics; polyelectrolytes; confinement; multivalent electric charges
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Nedelcu, S.; Sommer, J.-U. Charge Inversion Effects in Electrophoresis of Polyelectrolytes in the Presence of Multivalent Counterions and Transversal Electric Fields. Polymers 2014, 6, 2942-2960.

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