Biosensor
2 Assignments
0 Petitions
Accused Products
Abstract
A biosensor for determining the concentration of an analyte in a biological sample. The biosensor comprises a support, a reference electrode or a counter electrode or both disposed on the support, a working electrode disposed on the support, the working electrode spaced apart from the other electrode or electrodes on the support, a covering layer defining a sample chamber over the electrodes, an aperture in the covering layer for receiving a sample, and at least one layer of mesh in the sample chamber between the covering layer and the electrodes. The at least one layer of mesh has coated thereon a silicone surfactant. Certain silicone surfactants are as effective as fluorinated surfactants with respect to performance of biosensors. These surfactants, when coated onto the mesh layer of the biosensor, are effective in facilitating the transport of aqueous test samples, such as blood, in the sample chamber.
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Citations
48 Claims
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1-22. -22. (canceled)
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23. A method for determining the concentration of an analyte in a sample, the method comprising:
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applying the sample to a biosensor, the biosensor comprising; a substrate; a working electrode; a counter electrode; a cover layer defining an enclosed space over the electrodes; and at least one mesh layer disposed in the enclosed space between the cover layer and the electrodes, the at least one mesh layer coated with at least one silicone surfactant, wherein the at least one silicone surfactant comprises a mixture of silicone surfactants; applying a voltage to the working electrode; measuring a current at the working electrode; and correlating the current measured with the concentration of the analyte in the sample. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method for determining the concentration of an analyte in a sample, the method comprising:
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applying the sample to a biosensor, the biosensor comprising; a substrate; a working electrode; a counter electrode; a cover layer defining an enclosed space over the electrodes; and at least one mesh layer disposed in the enclosed space between the cover layer and the electrodes, the at least one mesh layer coated with at least one silicone surfactant, wherein the at least one silicone surfactant comprises a trisiloxane surfactant; applying a voltage to the working electrode; measuring a current at the working electrode; and correlating the current measured with the concentration of the analyte in the sample. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. A method for determining the concentration of an analyte in a sample, the method comprising:
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applying the sample to a biosensor, the biosensor comprising; a substrate; a working electrode; a counter electrode; a cover layer defining an enclosed space over the electrodes; and at least one mesh layer disposed in the enclosed space between the cover layer and the electrodes, the at least one mesh layer coated with at least one silicone surfactant, wherein the at least one silicone surfactant comprises a cyclosiloxane surfactant; applying a voltage to the working electrode; measuring a current at the working electrode; and correlating the current measured with the concentration of the analyte in the sample. - View Dependent Claims (43, 44, 45, 46, 47, 48)
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Specification