Electrophopretic mobility of soft particles.

A recent theory of electrophoresis of "soft" particles, i.e., polyelectrolyte-coated colloidal particles (Ohshima, J. Colloid Interface Sci. 1994, 163, 474-483), is reviewed. This theory unites two different electrophoresis theories for rigid colloidal spherical particles and for spherical polyelectrolytes. An example is given of the analysis of electrophoretic mobility data on hydrogel-layer-coated latex particles.