Enzyme stabilization in electrochemical sensors
First Claim
1. A composition for forming an electrode, the composition comprising an electrically conductive component having an analyte-specific enzyme covalently bound only to the electrically conductive component, wherein the composition further comprises at least one electrically nonconductive or semiconductive component stabilizing the analyte-specific enzyme by converting chemical substances causing decomposition of the enzyme, and wherein the electrically conductive component and/or the electrically nonconductive or semiconductive component is provided in the form of nanoparticles.
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Accused Products
Abstract
The present invention relates to a composition for forming an electrode, an electrochemical sensor comprising the same, and a method for determining an analyte using the electrochemical sensor.
12 Citations
26 Claims
- 1. A composition for forming an electrode, the composition comprising an electrically conductive component having an analyte-specific enzyme covalently bound only to the electrically conductive component, wherein the composition further comprises at least one electrically nonconductive or semiconductive component stabilizing the analyte-specific enzyme by converting chemical substances causing decomposition of the enzyme, and wherein the electrically conductive component and/or the electrically nonconductive or semiconductive component is provided in the form of nanoparticles.
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22. A composition for forming an electrode, the composition comprising an electrically conductive component having an analyte-specific enzyme covalently bound only to the electrically conductive component, wherein the composition further comprises at least one electrically nonconductive or semiconductive component stabilizing the analyte-specific enzyme by converting chemical substances causing decomposition of the enzyme, and at least one binder selected from the group consisting of fluorinated hydrocarbons, polycarbonates, polyisoprene, polyurethanes, acrylic resins, polyvinyl resins and silicones, and wherein the electrically conductive component and/or the electrically nonconductive or semiconductive component is homogeneously dispersed in the composition.
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23. A composition for forming an electrode, the composition comprising:
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an electrically conductive component having an analyte-specific enzyme covalently bound only to the electrically conductive component; and at least one electrically nonconductive or semiconductive component stabilizing the analyte-specific enzyme by converting chemical substances causing decomposition of the enzyme, wherein the at least one electrically nonconductive or semiconductive component is an H2O2-degrading metal oxide comprising Ag2O, Al2O3 or an oxide of a metal of the 4th period of the periodic table. - View Dependent Claims (24, 25, 26)
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Specification