On boundary effects in electrophoresis

Wall effects on electrophoretic motion of a non-conducting particle are inv estigated by resorting to a boundary integral approach. Contrary to availab le 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, ne ar the plane boundary, wall-particle interactions may strongly modify the e lectrophoretic motion taking place for a single sphere. (C) 2001 Academie d es sciences/Editions scientifiques et medicales Elsevier SAS.