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:
Feb. 23, 2010
Filed:
Sep. 02, 2008
Blake A. Simmons, San Francisco, CA (US);
Eric B. Cummings, Livermore, CA (US);
Gregory J. Fiechtner, Germantown, MD (US);
Yolanda Fintschenko, Livermore, CA (US);
Gregory J. Mcgraw, Ann Arbor, MI (US);
Allen Salmi, Escalon, CA (US);
Blake A. Simmons, San Francisco, CA (US);
Eric B. Cummings, Livermore, CA (US);
Gregory J. Fiechtner, Germantown, MD (US);
Yolanda Fintschenko, Livermore, CA (US);
Gregory J. McGraw, Ann Arbor, MI (US);
Allen Salmi, Escalon, CA (US);
Sandia Corporation, Livermore, CA (US);
Abstract
Disclosed herein are methods and devices for assaying and concentrating analytes in a fluid sample using dielectrophoresis. As disclosed, the methods and devices utilize substrates having a plurality of pores through which analytes can be selectively prevented from passing, or inhibited, on application of an appropriate electric field waveform. The pores of the substrate produce nonuniform electric field having local extrema located near the pores. These nonuniform fields drive dielectrophoresis, which produces the inhibition. Arrangements of electrodes and porous substrates support continuous, bulk, multi-dimensional, and staged selective concentration.