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  • Title: Glucose determination using a re-usable enzyme-modified ion track membrane sensor.
    Author: Fink D, Klinkovich I, Bukelman O, Marks RS, Kiv A, Fuks D, Fahrner WR, Alfonta L.
    Journal: Biosens Bioelectron; 2009 Apr 15; 24(8):2702-6. PubMed ID: 19138511.
    Abstract:
    A novel concept for a glucose biosensor based on the enzyme glucose oxidase covalently linked to nanopores of etched nuclear track membranes is presented. This device can be used to detect physiologically relevant glucose concentrations between 10 microM and 1 M. The sensitive catalytic sensor can be made re-usable due to the production of diffusible products from the oxidative biomolecular recognition event. We have demonstrated both the simplicity with which this sensor can be produced and the stability of the enzyme embedded in the nanopores. We strongly believe that the approach could be expanded for different enzymes and variable configurations of sensing and catalysis using membranes with nanopores for biocatalysis and enrichment of substrates and products. This is the first time that such devices are being used for biocatalytic transformations.
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