| Autor: |
Carusela, M. Florencia, Rubı, J. Miguel |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 2017, Vol. 146 Issue 18, p1-7, 7p, 1 Diagram, 11 Graphs |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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