Like-Charge Attraction and Hydrodynamic Interaction
Publication information:
Todd M. Squires and Michael P. Brenner. 2000. “Like-Charge Attraction and Hydrodynamic Interaction”. Physical Review Letters, 85, 23, Pp. 4976–4979. doi:10.1103/physrevlett.85.4976
Abstract
We demonstrate that the attractive interaction measured between like-charged colloidal spheres near a wall can be accounted for by a nonequilibrium hydrodynamic effect. We present both analytical results and Brownian dynamics simulations which quantitatively capture the one-wall experiments of Larsen and Grier [Nature (London) 385, 230 (1997)], using a single unmeasured parameter.