Osmium Complex Grafted on a Carbon Electrode Surface as a Mediator for a Bioelectrocatalytic Reaction

  • Tsujimura Seiya
    Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
  • Katayama Aya
    Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
  • Kano Kenji
    Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

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抄録

A novel electrochemical modification method of carbon electrodes with redox active amines is proposed for mediated electron transfer between enzymes and electrodes. Histamine-coordinated Os complex was synthesized as a model redox amine. The electro-oxidation of the complex generated a stable covalent linkage between the nitrogen atom of the amino group and the carbon atom of the electrode surface. The covalent-linked Os complex on the electrode showed a good redox response and a high activity as an electron-transfer mediator between the electrode and a model enzyme: PQQ-dependant water-soluble glucose dehydrogenase.

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  • Chemistry Letters

    Chemistry Letters 35 (11), 1244-1245, 2006

    公益社団法人 日本化学会

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