Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
724697 | Journal of Electrostatics | 2009 | 4 Pages |
Abstract
AC electric fields are of increasing importance for the generation of fluid flows in microsystems. We analyse numerically the use of AC electric fields at microwave frequencies for electro-thermal actuation of water in microdevices. Water is heated because of its significant dielectric loss at microwave frequencies. Buoyancy and dielectric forces actuate in the liquid bulk, and the relative importance between them is studied. The microwave liquid actuation can be used for pure water as well as for water saline solutions, such as bio-fluids. Therefore, it is of interest for the Lab-on-a-Chip technology.
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Antonio Ramos, Pablo García-Sánchez, Andrea Robles, Manuel J. Freire,