Artículo
Entropic rectification and current inversion in a pulsating channel
Fecha de publicación:
05/2017
Editorial:
American Institute of Physics
Revista:
Journal of Chemical Physics
ISSN:
0021-9606
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We show the existence of a resonant behavior of the current of Brownian particles confined in a pulsating channel. The interplay between the periodic oscillations of the shape of the channel and a force applied along its axis leads to an increase of the particle current as a function of the diffusion coefficient. A regime of current inversion is also observed for particular values of the oscillation frequency and the applied force. The model proposed is based on the Fick-Jacobs equation in which the entropic barrier and the effective diffusion coefficient depend on time. The phenomenon observed could be used to optimize transport in microfluidic devices or biological channels.
Palabras clave:
Transport in Confined Systems
,
Non Equilibrium Phenomena
,
Microfluidics
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Carusela, María Florencia; Rubí, J. Miguel; Entropic rectification and current inversion in a pulsating channel; American Institute of Physics; Journal of Chemical Physics; 146; 18; 5-2017; 1-17
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