Fluid Flower : Microliquid Patterning via Drop Impact

Details Fluid Flower : Microliquid Patterning via Drop Impact Fluid Flower : Microliquid Patterning via Drop Impact

2008-10-07

arxiv.org/abs/0810.1111v1

Physics

Fluid Dynamics

associated video file, see http://hdl.handle.net/1813/11451

Scientific paper

In microfluidic technologies, direct patterning of liquid without resorting to micromachined solid structures has various advantages including reduction of the frictional dissipation and the fabrication cost. This fluid dynamics video illustrates the method to micropattern a liquid on a solid surface with drop impact. We experimentally show that a water drop impacting with the wettability-patterned solid retracts fast on the hydrophobic regions while being arrested on the hydrophilic areas.

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