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US 2022/0031210 A1Published application
Glucose-sensing device with maltose blocking layer
AssigneeUXN Co., Ltd.
InventorsHankil Boo, Joungmin Lee, Rae Kyu Chang
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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.
Claims30
A glucose-sensing electrode comprising:
- a substrate;
- a glucose oxidation layer formed over the substrate and capable of oxidizing both glucose and maltose;
- and
- a polymer layer formed over the glucose oxidation layer and comprising poly-phenylenediamine (poly-PD),
- wherein the polymer layer has porosity adjusted for passing glucose therethrough while blocking some of 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 and the oxidation of maltose does not interfere determining a glucose level in a liquid containing glucose in a concentration of 4-20 mM and maltose in a concentration of 4-20 mM.
2 more elements
Dependencies are inferred from the claim text.