Five-channel particle separation device based on optoelectronic tweezers

The utility model belongs to the field of micro-fluidic chips, and particularly discloses a five-channel particle separation device based on photoelectronic tweezers, which comprises a to-be-separated solution inlet, a sheath flow inlet, a first buffer chamber, a photosensitive layer, a micro-fluid channel, a second buffer chamber and a five-particle outlet. Illumination is applied to different positions of the light-induced dielectrophoresis chip, the conductivity of the corresponding positions is changed, a non-uniform electric field is generated, and five kinds of particles in the microfluid channel are driven to move. The sizes and dielectric constants of the five kinds of particles are different, so that the light-induced dielectrophoretic forces suffered by the particles are different, and on the basis, different particles are separated, and the device has the advantages that the separation efficiency is high; particle samples needing to be collected are few; the five kinds of particles do not need to b