Methods and devices for high-throughput dielectrophoretic concentration

Patent · 22 February 2010

OSTI ID:1014186

Simmons, Blake A ^[1]; Cummings, Eric B ^[2]; Fiechtner, Gregory J ^[3]; Fintschenko, Yolanda ^[2]; McGraw, Gregory J ^[4]; Salmi, Allen ^[5]

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1. San Francisco, CA
2. Livermore, CA
3. Germantown, MD
4. Ann Arbor, MI
5. Escalon, CA

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.

• Research Organization: Sandia Corporation (Livermore, CA)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Livermore, CA)
• Patent Number(s): 7,666,289
• Application Number: US Patent Application 12/202,489
• OSTI ID: 1014186
• Country of Publication: United States
• Language: English