Synonyms
Definition
Dielectrophoresis (DEP) is defined as the motion of polarizable particles under the influence of an applied nonuniform electric field, with the force arising from the interaction of the field and the dipole moment induced in the particle.
Introduction
Dielectrophoresis is a second-order effect arising from the net effect of the dielectric force acting on interfaces between different dielectrics. It is second order in that the field generates a charge on the interface due to the different polarizability of the dielectrics and then acts on that charge to produce a force. The second-order nature also means that the time average of the force in an AC field is nonzero. Where the interface is a closed surface surrounding a volume such as a particle or a droplet which is free to move, the net force results in motion where the field is nonuniform. This dielectrophoretic motion is due to the fact that the charge on the interface forms a...
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References
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Green, N.G., Nili, H. (2015). Dielectrophoresis. In: Bhushan, B. (eds) Encyclopedia of Nanotechnology. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6178-0_131-2
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DOI: https://doi.org/10.1007/978-94-007-6178-0_131-2
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