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Portable dual field gradient force multichannel flow cytometer device with a dual wavelength low noise detection scheme

United States Patent

October 23, 2012
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Systems and methods for combining dielectrophoresis, magnetic forces, and hydrodynamic forces to manipulate particles in channels formed on top of an electrode substrate are discussed. A magnet placed in contact under the electrode substrate while particles are flowing within the channel above the electrode substrate allows these three forces to be balanced when the system is in operation. An optical detection scheme using near-confocal microscopy for simultaneously detecting two wavelengths of light emitted from the flowing particles is also discussed.
James; Conrad D. (Albuquerque, NM), Galambos; Paul C. (Albuquerque, NM), Derzon; Mark S. (Albuquerque, NM), Graf; Darin C. (Albuquerque, NM), Pohl; Kenneth R. (Albuquerque, NM), Bourdon; Chris J. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
12/ 610,409
November 2, 2009
STATEMENT OF GOVERNMENT INTEREST This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.