Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...
Reexamination Certificate
2005-04-05
2005-04-05
Olsen, Kaj K. (Department: 1753)
Chemistry: electrical and wave energy
Processes and products
Electrophoresis or electro-osmosis processes and electrolyte...
C204S643000
Reexamination Certificate
active
06875329
ABSTRACT:
To provide An electrode for a dielectrophoretic apparatus in which a background detected by reflecting an excited light on an electrode present under the substance (molecule) is reduced and an S/N ratio is enhanced. Also, there is provided an dielectrophoretic apparatus, in an apparatus in which a liquid containing substances to be separated is present in a non-uniform electric field formed by a dielectrophoretic electrode, and separation is carried out by a dielectrophoretic force exerting on the substances, wherein the collecting ability of substances is enhanced. The present invention is characterized in that a vacant space is provided in an electrode whereby substances subjected to influence by a negative dielectrophoretic force can be concentrated in said vacant space of an electrode, or above or below portion of the space.
REFERENCES:
patent: 5814200 (1998-09-01), Pethig et al.
patent: 5948328 (1999-09-01), Fiedler et al.
patent: 5993631 (1999-11-01), Parton et al.
patent: 6149789 (2000-11-01), Benecke et al.
Kawabata Tomohisa
Washizu Masao
Armstrong Kratz Quintos Hanson & Brooks, LLP
Olsen Kaj K.
Wako Pure Chemical Industries Ltd.
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