Electrophoretic mobility of heterogeneous vesicles

被引：7

作者：

André, P ^{[1
]}

Long, D ^{[1
]}

Ajdari, A ^{[1
]}

机构：

[1] Ecole Super Phys & Chim Ind, Lab Physicochim Theor, CNRS, ESA 7083, F-75231 Paris 05, France

来源：

EUROPHYSICS LETTERS | 1999年 / 46卷 / 04期

关键词：

D O I：

10.1209/epl/i1999-00296-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Unlike rigid uniformly charged particles, vesicles bearing transmembrane inclusions undergo, under electrophoretic motion, a redistribution of their surface charges. We study how this internal response of the vesicle affects its electrophoretic mobility, which is shown to depend on the vesicle size, on the average inclusion concentration and on the field intensity. The surface reorganization of the inclusions may cause the mobility to change sign as the field is increased. From our analysis, free-flow fractionation methods can be envisaged.

引用

页码：530 / 536

页数：7

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