Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/123361
Title: | Entropic rectification and current inversion in a pulsating channel |
Author: | Carusela, M. Florencia Rubí Capaceti, José Miguel |
Keywords: | Partícules (Matèria) Equació de la calor Particles Heat equation |
Issue Date: | 8-May-2017 |
Publisher: | American Institute of Physics |
Abstract: | 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. |
Note: | Reproducció del document publicat a: https://doi.org/10.1063/1.4982884 |
It is part of: | Journal of Chemical Physics, 2017, vol. 146, num. 18, p. 184901-1-184901-7 |
URI: | http://hdl.handle.net/2445/123361 |
Related resource: | https://doi.org/10.1063/1.4982884 |
ISSN: | 0021-9606 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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675819.pdf | 4.8 MB | Adobe PDF | View/Open |
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