Approximate analytic expressions for the electrophoretic mobility of spherical soft particles

被引：7

作者：

Ohshima, Hiroyuki ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Pharmaceut Sci, 2641 Yamazaki, Noda, Chiba 2788510, Japan

来源：

ELECTROPHORESIS | 2021年 / 42卷 / 21-22期

关键词：

Electrophoretic mobility; Polyelectrolyte layer; Soft particle; Spherical particle; Uncharged polymer layer; CATAPHORESIS;

D O I：

10.1002/elps.202000339

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Approximate analytic expressions are derived for the electrophoretic mobility of a weakly charged spherical soft particle consisting of the particle core covered with a surface layer of polymers in an electrolyte solution. The particle core and the surface polymer layer may be charged or uncharged. The obtained electrophoretic mobility expressions, which involve neither numerical integration nor exponential integrals, are found to be in excellent agreement with the exact numerical results. It is also found that the obtained mobility expressions reproduce all the previously derived limiting expressions and approximate analytic expressions for the electrophoretic mobility of a weakly charged spherical soft particle.

引用

页码：2182 / 2188

页数：7

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