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Microelectrodes for Microdroplet Motion Based On Electrowetting: A Review on Design


Electrowetting principles applied to very small amounts of liquids on solid surfaces whereby the scale can be reached up to nanoscale. Electrowetting principally controls the wettability of liquids on solid surfaces using electrical potential. The fabrications of solid surfaces and applied electric potential have a big role in determining the effectiveness of the electrowetting. In order to manipulate the microfluidic droplet, the microscale tools are needed such as microelectrodes, microvalves, microspinner and microspray. These tools used to supply the charge of electric potential to the droplet whereby it can control the hydrophobic and hydrophilic of droplet. In many studies of electrowetting, the type, shape and size of microelectrodes designed must be examined before the start of experiments.
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