Digital microfluidics on a wire

Gilet, T.; Terwagne, D.; Vandewalle, N.
July 2009
Applied Physics Letters;7/6/2009, Vol. 95 Issue 1, p014106
Academic Journal
In this letter, we discuss the behavior of droplets on fiber networks. An on/off transition is observed when a droplet comes around an intersection between several fibers: large droplets cross the junction while small droplets remain pinned. We show that fibers perform advantageously most operations of digital microfluidics, such as multiplexed biochemical microreactions: intersections are the basic component of fiber-based microfluidic devices.


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