Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...
Patent
1995-06-28
1998-02-17
Chin, Christopher L.
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving antigen-antibody binding, specific binding protein...
435 732, 435 795, 4352852, 436524, 436525, 436527, 436806, 422 8201, 422 8202, 422 8211, 422 98, 204400, 204402, 204403, 204422, G01N 3353, G01N 33537, G01N 33543
Patent
active
057190330
ABSTRACT:
A chemical sensor includes a thin film transistor with a gate positioned on one side. An insulating layer is positioned on the opposite side and an indicator film is positioned on the insulating layer in generally opposed relationship to the gate. Induced charge in the indicator film caused by a biological or chemical species changes the channel current in the transistor. A potential on the gate is then used to null out the resulting change in channel current. The potential used to null out the current change is an extremely sensitive measure of the induced charge.
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Ackley Donald E.
Shieh Chan-Long
Chin Christopher L.
Motorola Inc.
Nguyen Bao-Thuy L.
Parsons Eugene A.
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