On boundary effects in electrophoresis

Abstract

Wall effects on electrophoretic motion of a non-conducting particle are investigated by resorting to a boundary integral approach. Contrary to available works in the field, our method applies to a particle of arbitrary shape and zeta potential. Morevover, it circumvents calculating the perturbation potential and the fluid flow. Enclosed numerical results emphasize that, near the plane boundary, wall–particle interactions may strongly modify the electrophoretic motion taking place for a single sphere.