Competition between condensation of monovalent and multivalent ions in DNA aggregation

被引：37

作者：

Burak, Y ^{[1
]}

Ariel, G ^{[1
]}

Andelman, D ^{[1
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

来源：

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE | 2004年 / 9卷 / 1-2期

关键词：

DNA; multivalent ions; spermine;

D O I：

10.1016/j.cocis.2004.05.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：53 / 58

页数：6

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