Low voltage driven surface micro-flow by Joule heating

Wang, Haifang GND; Wang, S. G.; Kan, J. J.; Deng, Xiaoyong; Wang, Wenchong; Wu, Minghong; Lei, Yong

We report an electrically controlled micro-flow of liquid on Au-patterned glass surfaces with a driving voltage lower than 10 volts. The Joule heating produced by electrical current passing through the Au layer activates the selective wetting of liquids, performing complicated micro-flow control over pre-designed circuits. Transportation and serial dilution of the dye molecules in the liquid are further demonstrated.

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Wang, Haifang / Wang, S. / Kan, J. / et al: Low voltage driven surface micro-flow by Joule heating. Ilmenau 2017. ilmedia.

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