APPARATUS FOR MEASURING ANALYTES WITH AN EXTENDED FLOATING GATE SURFACE AREA

An apparatus may include an array of sensors, a plurality of microwells, a row addressing circuit, a column addressing circuit, and analog-to-digital converters. Each sensor includes a two-transistor circuit with a chemically-sensitive field effect transistor (chemFET) and a row select transistor an...

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Bibliographische Detailangaben
Hauptverfasser:	VAN OIJEN, Antoine M, MARRAN, David, HUBER, Martin, SCHULTZ, Jonathan, DAVIDSON, John F, LEAMON, John H, ROTHBERG, Jonathan M, REARICK, Todd, MILGREW, Mark, James, JOHNSON, Kim L, HINZ, Wolfgang, BUSTILLO, James M
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS OR TEST PAPERS THEREFOR CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES ENZYMOLOGY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING PHYSICS PROCESSES OF PREPARING SUCH COMPOSITIONS SPIRITS TESTING VINEGAR WINE
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Beschreibung
Zusammenfassung:	An apparatus may include an array of sensors, a plurality of microwells, a row addressing circuit, a column addressing circuit, and analog-to-digital converters. Each sensor includes a two-transistor circuit with a chemically-sensitive field effect transistor (chemFET) and a row select transistor and each chemFETs has a floating gate structure and a passivation material located over at least a subset of the floating gate structures. The microwells define a plurality of cavities disposed over at least a portion of the floating gate structures and are of a size and shape capable of retaining analyte therein. The column addressing circuit is suitable for supplying output from each sensor in the array of sensors. The analog-to-digital converters are used for each column in the sensor array to convert an analog output of the column addressing circuit to digital form.