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  • Title: Chemiluminescence flow-through biosensor for glucose with eggshell membrane as enzyme immobilization platform.
    Author: Li B, Lan D, Zhang Z.
    Journal: Anal Biochem; 2008 Mar 01; 374(1):64-70. PubMed ID: 18036547.
    Abstract:
    In this study, a new chemiluminescence (CL) flow-through biosensor for glucose was developed by immobilizing glucose oxidase (GOD) and horseradish peroxidase (HRP) on the eggshell membrane with glutaraldehyde as a cross-linker. The CL detection involved enzymatic oxidation of glucose to D-gluconic acid and hydrogen peroxide (H2O2) and then H2O2 oxidizing luminol to produce CL emission in the presence of HRP. The immobilization condition (e.g., immobilization time, GOD/HRP ratio, glutaraldehyde concentration) was studied in detail. It showed good storage stability at 4 degrees C over a 5-month period. The proposed biosensor exhibited short response time, high sensitivity, easy operation, and simple sensor assembly, and the proposed biosensor was successfully applied to the determination of glucose in human serum.
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