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US 12,629,064 B2Granted
Glucose-sensing device with maltose blocking layer
AssigneeUXN Co., Ltd.
InventorsHankil Boo, Joungmin Lee, Rae Kyu Chang
Life of this patent
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Abstract
This disclosure relates to a glucose-sensing electrode including a nanoporous metal layer and a maltose-blocking layer formed over the nanoporous metal layer. The nanoporous metal layer is capable of oxidizing both glucose and maltose without an enzyme specific to glucose or maltose in the glucose-sensing electrode. The maltose-blocking layer has porosity that permits glucose to pass therethrough and inhibits maltose from passing therethrough toward the nanoporous metal layer.
Claims31
A glucose-sensing electrode comprising:
- a substrate;
- a glucose oxidation layer formed over the substrate and capable of oxidizing both glucose and maltose, wherein the glucose oxidation layer comprises numerous nanoparticles forming irregularly shaped bodies, wherein at least part of the irregularly shaped bodies are interconnected while forming unoccupied spaces inside of the glucose oxidation layer, and wherein the numerous nanoparticles are made of at least one selected from the group consisting of platinum (Pt), gold (Au), palladium (Pd), rhodium (Rh), titanium (Ti), ruthenium (Ru), tin (Sn), nickel (Ni), copper (Cu), indium (In), thallium (Tl), zirconium (Zr), iridium (Ir), and one or more oxides of each of the foregoing metals;
- and
- means for blocking maltose that is configured for passing glucose therethrough while substantially blocking maltose from passing therethrough toward the glucose oxidation layer such that oxidation of glucose alone is substantially higher than oxidation of maltose alone in the glucose oxidation layer, wherein the means for blocking maltose is formed over the glucose oxidation layer.
1 more element
Dependencies are inferred from the claim text.