Pulsed-field separation of particles in a microfluidic device J. Regtmeier, R. Eichhorn, T. T. Duong, P. Reimann, D. Anselmetti and A. Ros Eur. Phys. J. E, 22 4 (2007) 335-340 Published online: 11 May 2007 DOI: 10.1140/epje/e2007-00040-y