Sandia Corporation

Darin C Graf

Paul Charles Galambos

Mark S Derzon

Conrad D James

Norman R Warpinski

Chris J Bourdon

Kenneth R Pohl

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.

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

A system for single-phase, steady-state permeability measurements of porous rock utilizes a fluid bridge arrangement analogous to a Wheatstone bridge. The arms of the bridge contain the sample and calibrated flow resistors.

Bridge permeameter

Growing community of inventors

Albuquerque, NM, United States of America

Darin C Graf