Potentiometric Biosensors: Concept and Analytical Applications-An Editorial
نویسنده
چکیده
The simplest transducer in the development of potentiometric biosensors is the glass pH electrode. Glucose oxidase immobilization was achieved using cellophane [1], nylon [1-6] or nitrocellulose [5,7] membranes that are subsequently fixed on the sensitive bulb of the pH electrode that senses the pH diminution, as a result of the biocatalytical reaction occurring in the enzyme layer (glucose oxidation by glucose oxidase). Such potentiometric enzyme sensors possess a linear range of 10-4 to 5 × 10-2 M, allowing for glucose assay in fruit juices [4].
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