Like-Charge Attraction and Hydrodynamic Interaction

Todd M. Squires, Michael P. Brenner
2000 Physical Review Letters  
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 385, p. 230, 1997).
doi:10.1103/physrevlett.85.4976 pmid:11102165 fatcat:gd5ch73jdrhudkzduhqcpxl7l4