EFFECTS OF FIXED-CHARGE DISTRIBUTION AND PH ON THE ELECTROPHORETIC MOBILITY OF BIOLOGICAL CELLS

被引：19

作者：

HSU, JP ^{[1
]}

HSU, WC ^{[1
]}

CHANG, YI ^{[1
]}

机构：

[1] TUNGHAI UNIV,DEPT CHEM ENGN,TAICHUNG,TAIWAN

来源：

COLLOID AND POLYMER SCIENCE | 1994年 / 272卷 / 03期

关键词：

ELECTROPHORETIC MOBILITY; CELLS; FIXED CHARGE; DONNAN POTENTIAL;

D O I：

10.1007/BF00655495

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：

The electrophoretic mobility of biological cells is investigated theoretically. In particular, the effects of the distribution of the charges in the surface layer and the pH of bulk liquid phase on the mobility of cells are examined. The former includes the fixed charges due to the dissociation of the functional groups and the charges due to the penetrated electrolyte ions. The present analysis extends previous results in that the fixed charges are distributed nonuniformly across the surface layer of a cell. It is found that the distribution of the fixed charges in the surface layer has a significant effect on its electrophoretic mobility. Thus, assuming that the fixed charges are homogeneously distributed in the surface layer of a cell may lead to a significant deviation.

引用

页码：251 / 260

页数：10

共 25 条

[1] EFFECT OF NONUNIFORM ZETA POTENTIAL ON PARTICLE MOVEMENT IN ELECTRIC-FIELDS [J].