Micro-electrode device for dielectrophoretic characterisation of particles
AssigneeUniversity of Surrey
InventorsMichael P. Hughes, Kai F. Hottges, Henry Oluseyi Olajide Fatoyinbo
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Abstract
A device for dielectrophoretic manipulation of suspended particulate matter comprises an analysis electrode and a separate cover electrode wherein the analysis electrode comprises an electrically conductive layer of material provided on a substrate support and apertures are defined through the electrically conductive layer. The device can be used for detection, analysis, fractionation, concentration or separation of particulate matter.
Claims49
A device for dielectrophoretic characterisation of particles which comprises an analysis electrode and a separate cover electrode having planar surfaces which face each other, wherein the analysis electrode comprises an electrically conductive layer of material provided on a substrate support and a plurality of apertures are defined through the electrically conductive layer, the device further comprising a non-uniform electric field generator coupled to the analysis electrode and the cover electrode, the non-uniform electric field generator configured to form a non-uniform electric field that is distributed axisymmetrically about the central axis of an aperture among the plurality of apertures, wherein, in use, a sample medium is placed between the analysis electrode and the cover electrode and the sample medium consists of particles suspended in a solvent.
Dependencies are inferred from the claim text.