2026-04-17T03:49:37Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1329472025-12-04T20:46:28Zcom_2072_1057col_2072_478822col_2072_478917

00925njm 22002777a 4500 dc Malgaretti, Paolo author Pagonabarraga Mora, Ignacio author Rubí Capaceti, José Miguel author 2019-05-09T14:11:09Z 2019-05-09T14:11:09Z 2014-09-15 2019-05-09T14:11:09Z We show that when particles are suspended in an electrolyte confined between corrugated charged surfaces, electrokinetic flows lead to a new set of phenomena such as particle separation, mixing for low-Reynolds micro- and nanometric devices, and negative mobility. Our analysis shows that such phenomena arise, for incompressible fluids, due to the interplay between the electrostatic double layer and the corrugated geometrical confinement and that they are magnified when the width of the channel is comparable to the Debye length. Our characterization allows us to understand the physical origin of such phenomena, therefore, shedding light on their possible relevance in a wide variety of situations ranging from nano- and microfluidic devices to biological systems. Física de partícules Experiments Teoria cinètica de la matèria Particle physics Experiments Kinetic theory of matter Entropic Electrokinetics: Recirculation, Particle Separation, and Negative Mobility