Competition between condensation of monovalent and multivalent ions in DNA aggregation

Details Competition between condensation of monovalent and multivalent ions in DNA aggregation Competition between condensation of monovalent and multivalent ions in DNA aggregation

2004-07-14

arxiv.org/abs/cond-mat/0407344v2

Curr. Opin. Colloid Interface Sci. 9, 53 (2004)

Physics

Condensed Matter

Soft Condensed Matter

6 pages, 1 figure

Scientific paper

10.1016/j.cocis.2004.05.002

We discuss the distribution of ions around highly charged PEs when there is competition between monovalent and multivalent ions, pointing out that in this case the number of condensed ions is sensitive to short-range interactions, salt, and model-dependent approximations. This sensitivity is discussed in the context of recent experiments on DNA aggregation, induced by multivalent counterions such as spermine and spermidine.

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