Abstract :
[en] The aim of the research is to model accurately dielectrophoresis
using different numerical tools and compare
them to experimental results. The dielectrophoresis phenomenon
consists in the creation of electrostatic forces on
nano or micro particles due to a gradient of electric field.
The aim of such a setup is to control the motion of micro
or nano particles for MEMS applications, for instance,
for bioanalysis devices. To validate the numerical
results, some prototypes have been fabricated at
TU Delft. Using these simulations, a design of microstructure
has been chosen to levitate Silica micro-particles. Experimental
measurements have been performed and some
characteristic behaviours of particle depending on the amplitude
and the frequency of the applied voltage have been
identified. The measurements are compared to the numerical
simulation.
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