Green, Nicolas G, Ramos, Antonio and Morgan, Hywel
Numerical solution of the dielectrophoretic and travelling wave forces for interdigitated electrode arrays using the ﬁnite element method.
Journal of Electrostatics, 56, . (doi:10.1016/S0304-3886(02)00069-4).
AC electrokinetics is the study of the movement of polarisable particles under the inﬂuence of AC electric ﬁelds. The ﬁelds are applied to a suspension of particles by planar microelectrode structures and one particular design, the interdigitated bar electrode has been used in both dielectrophoretic (DEP) ﬁeld ﬂow fractionation and travelling wave dielectrophoresis. This paper presents numerical solutions of the DEP and travelling wave forces for an interdigitated electrode array energised with either a 2- or 4-phase signal. The electrorotational torque experienced by the particle in the 4-phase travelling wave array is also calculated. The solutions are compared with previous results.
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