pubs.acs.org/Langmuir © 2009 American Chemical Society
Flow Reversal in Traveling-Wave Electrokinetics: An Analysis of Forces Due to Ionic Concentration Gradients P. Garcıa-Sanchez*,† and A. Ramos Departamento de Electr onica y Electromagnetismo, Facultad de Fısica, Universidad de Sevilla, 41012, Seville, Spain. †Present address: Physics of Complex Fluids, Faculty of Science and Technology, MESA +Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
A. Gonzalez Departamento de Fısica Aplicada III, Escuela Superior de Ingenieros, Universidad de Sevilla, 41092, Seville, Spain
N. G. Green and H. Morgan School of Electronics and Computer Science, University of Southampton, SO17 1BJ, Southampton, United Kingdom Received November 3, 2008. Revised Manuscript Received February 12, 2009 Pumping of electrolytes using ac electric fields from arrays of microelectrodes is a subject of current research. The behavior of fluids at low signal amplitudes (
