Gravity separation by entropic transport
Department of Physics, Yunnan University - Kunming, 650091, China
Received: 5 August 2014
Accepted: 19 December 2014
We propose a new method of gravity separation by entropic transport. Through tuning the geometry parameters or the amplitude of the external force, the average current of particles can be modified in confined nano-structures, thus leading to an effective particle separation according to their weights. We hope our method could be helpful in the microfluidic devices and narrow channels where geometric confinement and noise play dominant roles.
PACS: 02.50.Ey – Stochastic processes / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 05.10.Gg – Stochastic analysis methods (Fokker-Planck, Langevin, etc.)
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