Adsorption of polyelectrolyte onto a colloid of opposite charge

We study theoretically an idealized model for the adsorption of a weakly ch arged polyelectrolyte chain onto an oppositely charged colloidal particle. Within the framework of the self-consistent field theory, and using an anal ogy with the quantum theory of the atom, we show that the connectivity betw een the charges of the polymer leads to an "overcharee" of the colloidal pa rticle, which can adsorb a chain of total charge up to 15/6 times its own c harge.