Patent ID: 9731293
Date: 2017-08-15
CPC Classifications: B01L,B81B,G01N

Claim:
1. A device comprising: a microfluidic channel configured to supply a linear or non-linear dielectrophoretic (DEP) field to an interior of the channel via a (1) DEP electrode system or (2) insulator DEP system, the channel having a region of shaped wall geometry or obstruction geometry configured to create at least one restriction in the channel, and a source of laser light focused by an optic into the microfluidic channel, wherein the laser light and DEP field operate jointly on particles in the microfluidic channel to trap the particles or modify their velocity, wherein the DEP field exists across a length of the channel and is generated by electrodes positioned beyond the region of shaped wall geometry or obstruction geometry at inlet and outlet ends of the channel.