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Título:
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Entropic rectification and current inversion in a pulsating channel
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Autor/a:
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Carusela, M. Florencia; Rubí Capaceti, José Miguel
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Otros autores:
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Universitat de Barcelona |
Abstract:
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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. |
Materia(s):
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-Partícules (Matèria) -Equació de la calor -Particles -Heat equation |
Derechos:
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(c) American Institute of Physics , 2017
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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American Institute of Physics
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