| Abstract
| - The boundary effect on the electrophoresis of particles covered by a membrane layer is discussed byconsidering a spherical particle in a spherical cavity under the conditions where the effect of double-layerpolarization can be significant. The influence of the key parameters of the system under consideration onthe electrophoretic mobility of a particle is investigated. These include the surface potential; the thicknessof the double layer; the relative size of the cavity; and the thickness, the fixed charge density, and thefriction coefficient of the membrane layer. The fixed charge in the membrane layer of a particle is foundto have a significant influence on its electrophoretic behavior. For instance, depending upon the amountof fixed charge in the membrane layer, the mobility of a particle may exhibit a local minimum as thethickness of the double layer varies.
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