Continuous flow dielectrophoretic particle concentrator

United States Patent

April 17, 2007
View the Complete Patent at the US Patent & Trademark Office
Insulating Dielectrophoresis (iDEP)
A continuous-flow filter/concentrator for separating and/or concentrating particles in a fluid is disclosed. The filter is a three-port device an inlet port, an filter port and a concentrate port. The filter separates particles into two streams by the ratio of their dielectrophoretic mobility to their electrokinetic, advective, or diffusive mobility if the dominant transport mechanism is electrokinesis, advection, or diffusion, respectively. Also disclosed is a device for separating and/or concentrating particles by dielectrophoretic trapping of the particles.
Cummings; Eric B. (Livermore, CA)
Sandia National Laboratories (Livermore, CA)
June 20, 2002
204/547 ; 204/450; 204/600; 204/643;
G01N 27/26 (20060101); G01N 27/447 (20060101);
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC0494AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.