Electrodes for biosensors
AssigneeMaterion Corporation
InventorsEthan Fontaine, Jerome Farquharson, Russell A. Stroud
Life of this patent
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Abstract
The present disclosure relates to an electrode for measuring an analyte. The electrode includes a first base layer, a first electrode layer upon the first base layer, and a second base layer. The first electrode layer is arranged between the first base layer and the second base layer. The first base layer includes a conductive metal, a conductive metal alloy, or carbon. The first electrode layer includes ruthenium metal, a ruthenium based metal alloy, nickel metal, or a nickel based metal alloy. The first base layer is made of different elements than the first electrode layer. The first base layer is more conductive than the first electrode layer.
Claims20
A biosensor for measuring an analyte, comprising:
- a substrate;
- a first electrode operating as a reference electrode arranged on the substrate and formed from a first multi-layer stack, wherein the first multi-layer stack comprises a first base layer and a first electrode layer, and wherein the first base layer comprises a conductive metal, a conductive metal alloy, or carbon;
- a second electrode arranged on the substrate and formed from a second multi-layer stack, the second multi-layer stack having a same structure as the first multi-layer stack;
- and
- a reagent layer arranged on the second electrode to form a working electrode,
- wherein the first electrode layer is made from different materials than the first base layer, and the first base layer has a higher electrical conductivity than the first electrode layer.
A biosensor for measuring an analyte, comprising:
- a substrate;
- a reference electrode arranged on the substrate and comprising:
- a first multi-layer stack comprising a first base layer and a first electrode layer contacting the first base layer,
- wherein the first base layer comprises a conductive metal, a conductive metal alloy, or carbon, and
- wherein the first electrode layer comprises ruthenium metal, a ruthenium based metal alloy, nickel metal, or a nickel based metal alloy, wherein the first electrode layer comprises different elements than the first base layer;
- and
- a working electrode arranged on the substrate and comprising:
- a second multi-layer stack having a same structure as the first multi-layer stack, and
- a reagent layer arranged over the second multi-layer stack.
A biosensor for measuring an analyte, comprising:
- an electrode, the electrode comprising:
- a first base layer comprising a conductive metal, a conductive metal alloy, or carbon;
- a first electrode layer upon the first base layer, the first electrode layer comprising ruthenium metal, a ruthenium based metal alloy, nickel metal, or a nickel based metal alloy, wherein the first base layer comprises different elements than the first electrode layer, and wherein the first base layer is more conductive than the first electrode layer;
- and
- a second base layer, wherein the first electrode layer is arranged between the first base layer and the second base layer.
Dependencies are inferred from the claim text.