Overcharging of a macroion by an oppositely charged polyelectrolyte

T.T. Nguyen and B.I. Shklovskii

Physica A: Statistical Mechanics and its Applications, 2001, vol. 293, issue 3, 324-338

Abstract: Complexation of a polyelectrolyte with an oppositely charged spherical macroion is studied for both salt-free and salty solutions. When a polyelectrolyte winds around the macroion, its turns repel each other and form an almost equidistant solenoid. It is shown that this repulsive correlations of turns lead to the charge inversion: more polyelectrolyte winds around the macroion than it is necessary to neutralize it. The charge inversion becomes stronger with increasing concentration of salt and can exceed 100%. Monte-Carlo simulation results agree with our analytical theory.

Keywords: Charge inversion; Polyelectrolyte; Spherical macroion (search for similar items in EconPapers)
Date: 2001
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:293:y:2001:i:3:p:324-338

DOI: 10.1016/S0378-4371(01)00020-6

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