ELECTROCHEMICAL BIOSENSORS AND ARRAYS
First Claim
1. An amperometric sensor device comprising:
- a structural body which comprises at least one reservoir that has at least one opening in the structural body;
a working electrode located within the reservoir;
analyte sensor chemistry located within the reservoir and deposited on at least the working electrode;
an auxiliary electrode located outside of the reservoir;
a reference electrode;
at least one reservoir cap closing the at least one opening to isolate the working electrode and analyte sensor chemistry within the reservoir and to prevent an analyte outside of the reservoir from contacting the analyte sensor chemistry; and
means for rupturing or displacing the reservoir cap to permit the analyte from outside of the reservoir to contact the analyte sensor chemistry.
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Accused Products
Abstract
Electrochemical sensor devices are provided, in various amperometric, potentiometric, and conductometric sensor device configurations. An amperometric sensor device may include a structural body which has at least one reservoir that has at least one opening; a working electrode located within the reservoir; analyte sensor chemistry located within the reservoir and deposited on at least the working electrode; an auxiliary electrode located outside of the reservoir; a reference electrode; at least one reservoir cap closing the opening to isolate the working electrode and analyte sensor chemistry within the reservoir and to prevent an analyte outside of the reservoir from contacting the analyte sensor chemistry; and means for rupturing or displacing the reservoir cap to permit the analyte from outside of the reservoir to contact the analyte sensor chemistry.
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Citations
32 Claims
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1. An amperometric sensor device comprising:
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a structural body which comprises at least one reservoir that has at least one opening in the structural body; a working electrode located within the reservoir; analyte sensor chemistry located within the reservoir and deposited on at least the working electrode; an auxiliary electrode located outside of the reservoir; a reference electrode; at least one reservoir cap closing the at least one opening to isolate the working electrode and analyte sensor chemistry within the reservoir and to prevent an analyte outside of the reservoir from contacting the analyte sensor chemistry; and means for rupturing or displacing the reservoir cap to permit the analyte from outside of the reservoir to contact the analyte sensor chemistry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A potentiometric sensor device comprising:
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a structural body which comprises a plurality of reservoirs that each have at least one opening in the structural body; at least one indicator electrode located within the plurality of reservoirs; at least one reference electrode located within the plurality of reservoirs; at least one reservoir cap closing the at least one opening of each of the plurality of reservoirs, to isolate the at least one indicator electrode and the at least one reference electrode within the plurality of reservoirs and to prevent an analyte outside of the reservoirs from contacting the at least one indicator electrode and the at least one reference electrode; and means for rupturing or displacing the reservoir caps to permit the analyte from outside of the reservoir to contact the at least one indicator electrode and the at least one reference electrode, wherein an electrical potential which can be developed between the at least one indicator electrode and the at least one reference electrode provides a sensor signal indicative of a concentration of the analyte. - View Dependent Claims (17, 18, 19, 20)
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21. A potentiometric sensor device comprising:
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a structural body which comprises a plurality of reservoirs that each have at least one opening in the structural body; at least one indicator electrode located within the plurality of reservoirs; at least one reference electrode located outside of the plurality of reservoirs; at least one reservoir cap closing the at least one opening of each of the plurality of reservoirs, to isolate the at least one indicator electrode within the plurality of reservoirs and to prevent an analyte outside of the reservoirs from contacting the at least one indicator electrode; and means for rupturing or displacing the at least one reservoir cap to permit the analyte from outside of the reservoir to contact the at least one indicator electrode, wherein a potential which can be developed between the at least one indicator electrode and the at least one reference electrode provides a sensor signal indicative of a concentration of the analyte. - View Dependent Claims (22, 23)
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24. A potentiometric sensor device comprising:
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a structural body which comprises a plurality of reservoirs that each have at least one opening in the structural body; at least one indicator electrode; at least one reference electrode located within the plurality of reservoirs; at least one reservoir cap closing the at least one opening of each of the plurality of reservoirs, to isolate the at least one reference electrode within the plurality of reservoirs and to prevent an analyte outside of the reservoirs from contacting the at least one reference electrode; and means for rupturing or displacing the at least one reservoir cap to permit the analyte from outside of the reservoir to contact the at least one reference electrode, wherein a potential which can be developed between the at least one indicator electrode and the at least one reference electrode provides a sensor signal indicative of a concentration of the analyte. - View Dependent Claims (25)
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26. A conductometric sensor device comprising:
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a structural body which comprises at least one reservoir that has at least one opening in the structural body; an electrode pair located within the reservoir; a biological recognition element or other selectively sensitive material located within the reservoir and deposited on the electrode pair; at least one reservoir cap closing the at least one opening to isolate the electrode pair and the biological recognition element within the reservoir and to prevent an analyte outside of the reservoir from contacting the biological recognition element; and means for rupturing or displacing the at least one reservoir cap to permit the analyte from outside of the reservoir to contact the biological recognition element. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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Specification