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(Top): Interdigitated electrode geometry used to determine the DEP cross-over frequency fxo. (Bottom): comsol Multiphysics simulation of the DEP force (log10[N]) acting on a 10 μm diameter cell (Clausius-Mossotti factor = 0.5) with an applied voltage of 3 V (pk), as a function of distance (x μm) along and height above (z μm) the electrode plane.
