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    Title: Mediatorless N2 incorporated diamond nanowire electrode for selective detection of NADH at stable low oxidation potential
    Authors: Jayakumar Shalini;Kamatchi Jothiramalingam Sankaran;Chen, Huang-Chin;Lee, Chi-Young;Tai, Nyan-Hwa;Lin, I-Nan
    Contributors: 淡江大學物理學系
    Date: 2014-02
    Issue Date: 2014-03-18 10:17:39 (UTC+8)
    Publisher: Cambridge: R S C Publications
    Abstract: The electrocatalytic properties of a N2 incorporated diamond nanowire (N-DNW) unmodified electrode towards the oxidation of nicotinamide adenine dinucleotide (NADH) was critically evaluated. The electrochemical behavior of the N-DNW unmodified electrode was examined and compared with that of boron-doped diamond, glassy carbon electrode, and graphite electrodes. The N-DNW electrode had high selectivity and high sensitivity for the differential pulse voltammetric detection of NADH in the presence of ascorbic acid at the lower and stable oxidation potential. Moreover, it exhibited strong stability after prolonged usage. The oxidation peak potential at the N-DNW electrode remained unchanged even after exposure to the solution, followed by washing, drying, and storage in laboratory air for 20 days, with minimization of surface contamination. Therefore, the N-DNW unmodified electrode shows promise for the detection of NADH and is attractive for use in a dehydrogenase based biosensor and other analytical applications.
    Relation: Analyst 139, pp.778-785
    DOI: 10.1039/c3an01246h
    Appears in Collections:[物理學系暨研究所] 期刊論文

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