Overcharging of complexes formed by oppositely charged, interpenetrable macroionsI. I. Potemkin
Department of Physics, Moscow State University - Moscow 119992, Russia
received 25 June 2004; accepted in final form 28 September 2004
published online 23 October 2004
The mean-field theory of overcharging of a spherical polyanion, which is penetrable for several polycations, is developed. The effect of counterions is explicitly taken into account. It is shown that the overcharging is always driven by electrostatic interactions, whereas counterions can either promote or prohibit this effect.
36.20.-r - Macromolecules and polymer molecules.
87.15.Nn - Properties of solutions; aggregation and crystallization of macromolecules.
61.20.Qg - Structure of associated liquids: electrolytes, molten salts, etc.
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