Lab Chip. 2008-01-01; 8(2): 274-279
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1. Lab Chip. 2008 Feb;8(2):274-9. doi: 10.1039/b712368j. Epub 2007 Nov 22.
Bartolo D(1), Degré G, Nghe P, Studer V.
(1)Laboratoire de physique et mécanique des milieux hétérogène, PMMH-ESPCI-CNRS
UMR 7636-P6-P7, Paris, France.
We present how to make and assemble micro-patterned stickers (microPS) to
construct high performance plastic microfluidic devices in a few minutes. We take
advantage of soft UV imprint techniques to tailor the geometry, the mechanical
properties, and the surface chemistry of 2D and 3D microfluidic circuits. The
resulting microfluidic stickers substantially overcome the actual performance of
the very popular PDMS devices for a wide range of applications, while sharing
their celebrated fast and easy processing. To highlight the intrinsic advantages
of this method, three important applications are detailed: (i) we show that both
aqueous and organic droplets can be produced and stored in stickers without any
specific surface coating. (ii) We report on the outstanding pressure resistance
of the microPS, which open the way to the transport of viscous complex fluids.
(iii) Finally, a simple design strategy is proposed to generate complex flow
patterns in interconnected stacks of microPS.
PMID: 18231666 [Indexed for MEDLINE]