Electrochemical cell
First Claim
1. A biosensor for use in determining a concentration of a component in an aqueous liquid sample, the biosensor comprising:
- (a) an electrochemical cell, the electrochemical cell comprising a first electrically resistive substrate having a first thin layer of a first electrically conductive material on a first face, a second electrically resistive substrate having a second thin layer of a second electrically conductive material on a second face, the substrates being disposed with the first electrically conductive material facing the second electrically conductive material and being separated by a sheet comprising an aperture, the wall of which aperture cooperates with the electrically conductive materials to define a cell wall, and wherein the aperture defines a working electrode area in the cell, the cell further comprising a sample introduction aperture whereby the aqueous liquid sample may be introduced into the cell, the electrochemical cell additionally comprises a socket region having a first contact area in electrical communication with the first thin layer of the first electrically conductive material and a second contact area in electrical communication with the second thin layer of the second electrically conductive material; and
(b) a measuring circuit, the measuring circuit being electrically connectable with the electrochemical cell by engaging with the socket region.
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Accused Products
Abstract
A biosensor for use in determining a concentration of a component in an aqueous liquid sample is provided including: an electrochemical cell having a first electrically resistive substrate having a thin layer of electrically conductive material, a second electrically resistive substrate having a thin layer of electrically conductive material, the substrates being disposed with the electrically conductive materials facing each other and being separated by a sheet including an aperture, the wall of which aperture defines a cell wall and a sample introduction aperture whereby the aqueous liquid sample may be introduced into the cell; and a measuring circuit.
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Citations
17 Claims
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1. A biosensor for use in determining a concentration of a component in an aqueous liquid sample, the biosensor comprising:
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(a) an electrochemical cell, the electrochemical cell comprising a first electrically resistive substrate having a first thin layer of a first electrically conductive material on a first face, a second electrically resistive substrate having a second thin layer of a second electrically conductive material on a second face, the substrates being disposed with the first electrically conductive material facing the second electrically conductive material and being separated by a sheet comprising an aperture, the wall of which aperture cooperates with the electrically conductive materials to define a cell wall, and wherein the aperture defines a working electrode area in the cell, the cell further comprising a sample introduction aperture whereby the aqueous liquid sample may be introduced into the cell, the electrochemical cell additionally comprises a socket region having a first contact area in electrical communication with the first thin layer of the first electrically conductive material and a second contact area in electrical communication with the second thin layer of the second electrically conductive material; and
(b) a measuring circuit, the measuring circuit being electrically connectable with the electrochemical cell by engaging with the socket region. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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2. (canceled)
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9. (canceled)
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10. A biosensor for use in determining a concentration of a component in an aqueous liquid sample, the biosensor comprising:
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(a) a thin layer electrochemical cell, the cell comprising;
(i) an electrically resistive sheet comprising an aperture wherein the aperture defines a working electrode area in the cell;
(ii) a first electrode layer covering the aperture on a first side of the sheet;
(iii) a second electrode layer covering the aperture on a second side of the sheet;
(iv) a passage for admission into the aperture of the aqueous liquid sample; and
(v) a socket region for receiving a tongue plug, the socket region having a first contact area in electrical communication with the first electrode layer and a second contact area in electrical communication with the second electrode layer; and
(b) a measuring circuit. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17-32. -32. (canceled)
Specification