Chemistry: analytical and immunological testing – Including sample preparation – Volumetric liquid transfer
Reexamination Certificate
2006-02-07
2006-02-07
Warden, Jill (Department: 1743)
Chemistry: analytical and immunological testing
Including sample preparation
Volumetric liquid transfer
C422S105000, C222S057000, C222S639000
Reexamination Certificate
active
06995024
ABSTRACT:
An apparatus and device for dispensing femtoliter to nanoliter volumes of liquid samples are disclosed. The apparatus includes a liquid-support plate, two electrodes, a substrate, and a control unit. The liquid support plate has a plurality of liquid-support regions, each capable of supporting a liquid meniscus thereon. The first electrode contains a plurality of electrode connections, each operatively connected to one of the liquid support regions, for electrical contact with a meniscus supported in such region. The substrate has a first side confronting the plate and an opposite side, and a plurality of sample-holding regions formed in the first side. The second electrode is disposed adjacent one of the two substrate sides. Thus, a selected volume of the liquid can be ejected from or to one or more of the liquid-support regions to or from one or more of the sample-holding regions.
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Garcia Pablo E.
Low Thomas P.
Shrader Eric J.
Smith Chris D.
Gordon Brian R.
Perkins Coie LLP
SRI - International
Warden Jill
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