Electrophoresis of colloidal dispersions in the low-salt regime.
Electrophoresis of colloidal dispersions in the low-salt regime.
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DOI：
10.1103/physrevlett.98.176105
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发表时间：
2006-01
影响因子：
8.6
通讯作者：
V. Lobaskin;B. Dünweg;M. Medebach;T. Palberg;Christian Holm-
中科院分区：
文献类型：
--
作者：
V. Lobaskin;B. Dünweg;M. Medebach;T. Palberg;Christian Holm-
我们研究了低盐悬浮液中球形带电胶体的电泳迁移率随胶体浓度的变化。使用一个有效的粒子电荷和减少筛选参数，我们映射的数据与不同的粒子电荷和大小的系统，包括数值模拟数据与完整的静电和流体力学和实验数据的乳胶分散体，在一个单一的主曲线。我们观察到两种不同的体积分数依赖制度的电泳迁移率，可以解释的离子双层的静态特性。
We study the electrophoretic mobility of spherical charged colloids in a low-salt suspension as a function of the colloidal concentration. Using an effective particle charge and a reduced screening parameter, we map the data for systems with different particle charges and sizes, including numerical simulation data with full electrostatics and hydrodynamics and experimental data for latex dispersions, on a single master curve. We observe two different volume fraction-dependent regimes for the electrophoretic mobility that can be explained in terms of the static properties of the ionic double layer.