The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2011
Filed:
Jun. 27, 2005
Jianjun Feng, Huntsville, AL (US);
Guiren Wang, Huntsville, AL (US);
Sivaramakrishnan Krishnamoorthy, Madison, AL (US);
Kapil Pant, Huntsville, AL (US);
Shivshankar Sundaram, Madison, AL (US);
Jianjun Feng, Huntsville, AL (US);
Guiren Wang, Huntsville, AL (US);
Sivaramakrishnan Krishnamoorthy, Madison, AL (US);
Kapil Pant, Huntsville, AL (US);
Shivshankar Sundaram, Madison, AL (US);
CFD Research Corporation, Huntsville, AL (US);
Abstract
Methods and apparatus for the micro-scale, dielectrophoretic separation of particles are provided. Fluid suspensions of particles are sorted and separated by dielectrophoretic separation chambers that have at least two consecutive, electrically coupled planar electrodes separated by a gap in a fluid flow channel. The gap distance as well as applied potential can be used to control the dielectrophoretic forces generated. Using consecutive, electrically coupled electrodes rather than electrically coupled opposing electrodes facilitates higher flow volumes and rates. The methods and apparatus can be used, for example, to sort living, damaged, diseased, and/or dead cells and functionalized or ligand-bound polymer beads for subsequent identification and/or analysis.