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Biosensors Based on Cross-Linking of Biotinylated Glucose Oxidase By Avidin

机译:生物传感器基于生物素化葡萄糖氧化酶交联的抗生物素蛋白

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摘要

Avidin, having four biotin binding units, cross-links and immobilizes glucoseoxidase (GOX) labeled with multiple biotins (B-GOX) when solutions of B-GOX and avidin are mixed on an electrode. The H2O2 flux generated in the B-GOX catalyzed oxidation of glucose by dissolved O2 is measured as an electroreduction current at a horseradish peroxidase (HRP) redox conducting hydrogel electrode poised at +100 mV (Ag/AgCl). The sensitivity of the resulting glucose sensor is 0.14A/sq cm/M with a linear range up to 2mM glucose. (jg).

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