A theory of the dynamic electrophoretic mobility of a spherical soft particle (that is, a polyelectrolyte-coated spherical particle) in an oscillating electric field is presented. In the absence of the polyelectrolyte layer a spherical soft particle becomes a spherical hard particle, while in the ab
On the electrophoretic mobility of a cylindrical soft particle
โ Scribed by H. Ohshima
- Publisher
- Springer
- Year
- 2001
- Weight
- 101 KB
- Volume
- 279
- Category
- Article
- ISSN
- 0340-255X
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๐ SIMILAR VOLUMES
A general expression is derived for the electrophoretic mobility of a soft particle, i.e., a spherical hard colloidal particle of radius \(a\) coated with a layer of polyelectrolytes of thickness \(d\) in an electrolyte solution. In the limit of \(d \rightarrow 0\), the mobility expression tends to
Accurate approximate formulas are obtained for the dynamic electrophoretic mobility of a cylindrical hard colloidal particle in an oscillating electric field for two cases where the cylinder is in a transverse field or in a tangential field. These formulas, expressed in terms of Hankel functions and
Electrokinetic equations for electrophoresis of a soft particle (that is, a hard particle covered with a layer of polyelectrolytes) have been solved previously under the conditions that the net force acting on the soft particle as a whole (the particle core plus the polyelectrolyte layer) must be ze
A general theory is developed for the electrophoretic mobility of spherical soft particles (i.e., spherical hard colloidal particles of radius a coated with a layer of polyelectrolytes of thickness d) in concentrated suspensions in an electrolyte solution as a function of the particle volume fractio