Motion driven by the force on induced polarization in a nonuniform electric field. In the dipole regime its sign depends on the particle–medium polarizability contrast and its magnitude scales with particle volume.
Dielectrophoresis (DEP) is a technique that uses non-uniform electric fields to manipulate polarizable particles or cells. The phenomenon occurs when a neutral particle with an induced dipole moment experiences a force due to a spatially varying electric field. This force can cause the particle to move towards regions of higher or lower electric field strength, depending on its dielectric properties relative to the surrounding medium.
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