A single-channel microparticle sieve based on Brownian ratchets

Verleger, S.; Grimm, A.; Kreuter, C.; Tan, H. M.; Kan, J. A. van; Erbe, A.; Scheer, E.; Maarel, J. R. C. van der

A single-channel microparticle sieve based on Brownian ratchets

Verleger, S.; Grimm, A.; Kreuter, C.; Tan, H. M.; van Kan, J. A.; Erbe, A.; Scheer, E.; van der Maarel, J. R. C.

We present a novel device for the separation of microparticles in a single channel, which is made of inversely asymmetric Brownian ratchets. It enables separation into two different fractions with an adjustable threshold and can be modeled with good agreement. This device serves as proof of concept for an extremely compact class of microsieves.

Keywords: colloidal model systems; microfluidics

Lab on a chip 12(2012), 1238

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