Liquid purification or separation – Processes – Using magnetic force
Reexamination Certificate
2007-02-20
2007-02-20
Reifsnyder, David A. (Department: 1723)
Liquid purification or separation
Processes
Using magnetic force
C210S746000, C210S222000, C210S243000, C436S149000, C436S150000, C436S526000, C436S806000
Reexamination Certificate
active
10793058
ABSTRACT:
Method and apparatus for manipulating and monitoring analyte flowing in fluid streams. A giant magnetoresistive sensor has an array of sensing elements that produce electrical output signals which vary in dependence on changes in the magnetic field proximate the sensing elements. The analyte is included in a stream, such that the stream has a magnetic property which is dependent on the concentration and distribution on the analyte therein. The stream is flowed past the giant magnetoresistive sensor and in sufficiently close proximity to cause the magnetic properties of the stream to produce electrical output signals. The electrical output signals are monitored as an indicator of analyte concentration or distribution in the stream flowing past the GMR sensor. Changes in the magnetic field produced by the background stream are introduced by analyte molecules, whose presence in the flow past the GMR will effect the output reading.
REFERENCES:
patent: 5656429 (1997-08-01), Adelman
patent: 5932813 (1999-08-01), Swartzel et al.
patent: 5981297 (1999-11-01), Baselt
patent: 5985153 (1999-11-01), Dolan et al.
patent: 6013188 (2000-01-01), Terstappen et al.
patent: 6046585 (2000-04-01), Simmonds
patent: 6057167 (2000-05-01), Shieh et al.
patent: 6736978 (2004-05-01), Porter et al.
patent: WO 9810267 (1998-03-01), None
patent: WO01/14591 (2001-03-01), None
Julia Boguslavsky, Lab-on-a-Chip: Easier, Faster, Smaller, Drug Discovery & Development, Jul./Aug. 2001.
R.L. Edelstein, et al., The BARC biosensor applied to the detection of biological warfare agents, 2000 Elsevier Science S.A.
David R. Baselt, et al., A biosensor based on magnetoresistance technology, 1998 Elsevier Science S.A.
Christine Berggren Driz, et al., Magnetic Permeability Measurements in Bioanalysis and Biosensors, Analytical Chemistry, vol. 68, No. 11, Jun. 1, 1996.
Emmanuel Delamarche, et al., Microfluidic Networks for Chemical Patterning of Substrates: Design and Application to Bioassays, 1998 American Chemical Society.
C. Bor Fuh, Split-flow Thin Fractionation, Analytical Chemistry, Apr. 1, 2000.
Dawson G Brent
Granger Michael C
Lipert Robert J
Ni Jing
Porter Marc D
Iowa State University Research Foundation
Reifsnyder David A.
Reinhart Boerner Van Deuren P.C.
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