Overcharging of a macroion by an oppositely charged polyelectrolyte
نویسندگان
چکیده
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%. MonteCarlo simulation results agree with our analytical theory. PACS: 87.14.Gg, 87.15.Nn
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