Shear flow pumping in open microfluidic systems

Details Shear flow pumping in open microfluidic systems Shear flow pumping in open microfluidic systems

2006-10-26

arxiv.org/abs/cond-mat/0610735v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 4 figure, submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.98.224504

We propose to drive open microfluidic systems by shear in a covering fluid layer, e.g., oil covering water-filled chemical channels. The advantages as compared to other means of pumping are simpler forcing and prevention of evaporation of volatile components. We calculate the expected throughput for straight channels and show that devices can be built with off-the-shelf technology. Molecular dynamics simulations suggest that this concept is scalable down to the nanoscale.

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