Please use this identifier to cite or link to this item:
https://dipositint.ub.edu/dspace/handle/2445/132947
Title: | Entropic Electrokinetics: Recirculation, Particle Separation, and Negative Mobility |
Author: | Malgaretti, Paolo Pagonabarraga Mora, Ignacio Rubí Capaceti, José Miguel |
Keywords: | Física de partícules Experiments Teoria cinètica de la matèria Particle physics Experiments 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: https://doi.org/10.1103/PhysRevLett.113.128301 |
It is part of: | Physical Review Letters, 2014, vol. 113, num. 12, p. 128301 |
URI: | http://hdl.handle.net/2445/132947 |
Related resource: | https://doi.org/10.1103/PhysRevLett.113.128301 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
650835.pdf | 195.8 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.