Patent ID: 9630187
Date: 2017-04-25
CPC Classifications: B03C

Claim:
1. A method of concentrating dielectrophoretic particles, comprising: providing a fluid pipe structure, wherein the fluid pipe structure has a first wall, a second wall, a third wall and a fourth wall, wherein the first wall is parallel to the third wall, and both end sides of each of the second wall and the fourth wall are respectively on the first wall and the third wall, a protrudent structure forms a line structure and is lying on the first wall and is protruding inwardly toward the third wall so as to form a line-like gate, wherein both ends of the protrudent structure are respectively on the second wall and the fourth wall; making fluid containing particles to be measured to flow through the fluid pipe structure; applying an electrical field through the line-like gate so as to produce a dielectrophoresis force to concentrate the particles to be measured, wherein the electrical field is applied by disposing a pair of electrodes on the third wall of the fluid pipe structure at two sides of the line-like gate and the pair of electrodes is parallel to a longitudinal direction of the line-like gate, wherein both ends of each of the pair of electrodes are respectively on the second wall and the fourth wall; and detecting the concentrated particles to be measured by disposing a detection electrode on the third wall inside the fluid pipe structure under the line-like gate corresponding to the protrudent structure, wherein the detection electrode comprises a set of line electrodes being parallel with the line-like gate.