期刊
BIOMICROFLUIDICS
卷 3, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3124822
关键词
bioMEMS; chemical analysis; drops; hydrophobicity; lab-on-a-chip; microactuators; microfluidics; wetting
资金
- NIAAA NIH HHS [R00 AA021803, K99 AA021803] Funding Source: Medline
Electrowetting on dielectrics has been widely used to manipulate and control microliter or nanoliter liquids in micro-total-analysis systems and laboratory on a chip. We carried out experiments on electrowetting on a lotus leaf, which is quite different from the equipotential plate used in conventional electrowetting. This has not been reported in the past. The lotus leaf is superhydrophobic and a weak conductor, so the droplet can be easily actuated on it through electrical potential gradient. The capillary motion of the droplet was recorded by a high-speed camera. The droplet moved toward the counterelectrode to fulfill the actuation. The actuation speed could be of the order of 10 mm/s. The actuation time is of the order of 10 ms.
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