Electrostatic complexation of spheres and chains under elastic stress

Details Electrostatic complexation of spheres and chains under elastic stress Electrostatic complexation of spheres and chains under elastic stress

2001-06-18

arxiv.org/abs/cond-mat/0106352v1

Physics

Condensed Matter

Soft Condensed Matter

16 pages, submitted to J. Chem. Phys

Scientific paper

10.1063/1.1403688

We consider the complexation of highly charged semiflexible polyelectrolytes with oppositely charged macroions. On the basis of scaling arguments we discuss how the resulting complexes depend on the persistence length of the polyelectrolyte, the salt concentration, and the sizes and charges of the chain and the macroions. We study first the case of complexation with a single sphere and calculate the wrapping length of the chain. We then extend our considerations to complexes involving many wrapped spheres and study cooperative effects. The mechanical properties of such a complex under an external deformation are evaluated.

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