Fluid Flower : Microliquid Patterning via Drop Impact
Abstract
Description
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.
associated video file, see http://hdl.handle.net/1813/11451
associated video file, see http://hdl.handle.net/1813/11451