Please use this identifier to cite or link to this item:
Title: Entropic Electrokinetics: Recirculation, Particle Separation, and Negative Mobility
Author: Malgaretti, Paolo
Pagonabarraga Mora, Ignacio
Rubí Capaceti, José Miguel
Keywords: Física de partícules
Teoria cinètica de la matèria
Particle physics
Kinetic theory of matter
Issue Date: 15-Sep-2014
Publisher: American Physical Society
Abstract: 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.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2014, vol. 113, num. 12, p. 128301
Related resource:
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

Files in This Item:
File Description SizeFormat 
650835.pdf195.8 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.