title: High electro-catalytic activities of glucose oxidase embedded one-dimensional ZnO nanostructures.
abstract: One-dimensional ZnO nanorods and nanowires are separately synthesized on Zn substrate by simple hydrothermal processes at low temperatures. Electro-catalytic responses of glucose oxidase/ZnO/Zn electrodes using these two synthesized nanostructures of ZnO are reported and compared with others available in literature. It is apparent the Michaelis-Menten constant, [Formula: see text], for the present ZnO nanowire, having a greater aspect ratio, is found to be the lowest when compared with others. This sensor shows lower oxidation peak potential with a long detection range of 6.6 μM-380 mM and the highest sensitivity of ∼35.1 μA cm(-2) mM(-1), among the reported values in the literature. Enzyme catalytic efficiency and turnover numbers are also found to be remarkably high.
authors: Sodepur Chandrachur Vidyapith, 1, D. B. Nagar, PO Sodepur, Kolkata 700110, India.
authors: Nirmal K
authors: NK
authors: Sarkar
authors: Swapan K
authors: SK
authors: Bhattacharyya
mesh_terms: D001234:Aspergillus niger / Q000201:enzymology*; D015374:Biosensing Techniques / Q000379:methods*; D004800:Enzymes, Immobilized / Q000737:chemistry* / Q000378:metabolism; D005947:Glucose / Q000032:analysis*; D005949:Glucose Oxidase / Q000737:chemistry* / Q000378:metabolism; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D012680:Sensitivity and Specificity; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D004800:Enzymes, Immobilized; D005949:Glucose Oxidase; D005947:Glucose; D015034:Zinc Oxide