Screening of hydrodynamic interactions for polyelectrolytes in salt solution

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We provide numerical evidence that hydrodynamic interactions are screened for charged polymers in salt solution on time scales below the Zimm time. At very short times, a crossover to hydrodynamic behavior is observed. Our conclusions are drawn from extensive coarse-grained computer simulations of polyelectrolytes in explicit solvent and explicit salt, and discussed in terms of analytical arguments based on the Debye-Hueckel approximation.
4 pages, 4 figures, submitted to Physical Review Letters

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Soft Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/170329

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0809.5239
 http://arxiv.org/abs/0809.5239

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arXiv