Wigner crystal model of counterion induced bundle formation of rodlike polyelectrolytes
Wigner crystal model of counterion induced bundle formation of rodlike polyelectrolytes
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DOI：
10.1103/physrevlett.82.3268
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发表时间：
1999-04-19
影响因子：
8.6
通讯作者：
Shklovskii, BI
中科院分区：
文献类型：
--
作者：
Shklovskii, BI
提出了一个简单的棒状聚电解质在多价反离子影响下的凝聚静电理论。它是基于这样的想法，即抗衡离子在一束棒的背景上形成维格纳晶体。它示出，取决于一个单一的无量纲参数，这可以是一个密集的三维维格纳晶体或一个二维晶体的杆表面上。对于DNA，电荷在螺旋上的位置导致一维维格纳晶体的模型。Wigner晶体的概念也可以应用于其他聚电解质的自组装，例如胶体和DNA-脂质复合物。[S0031-9007（99）08957-7]。
A simple electrostatic theory of condensation of rodlike polyelectrolytes under influence of polyvalent counterions is proposed. It is based on the idea that counterions form a Wigner crystal on a background of a bundle of rods. It is shown that, depending on a single dimensionless parameter, this can be a densely packed three-dimensional Wigner crystal or a two-dimensional crystal on the rod surfaces. For DNA the location of charge on the spiral results in a model of the one-dimensional Wigner crystal. It is also argued that the Wigner crystal idea can be applied to self-assembly of other polyelectrolytes, fur example, colloids and DNA-lipid complexes. [S0031-9007(99)08957-7].