Ordered molecular assembly inside carbon nanotube forest films for high-efficiency enzymatic biofuel cell

Syuhei Yoshino, Takeo Miyake, Hirokazu Kaji, Takeo Yamada, Kenji Hata, Matsuhiko Nishizawa

研究成果: Conference contribution

抜粋

Molecularly ordered composites of polyvinylimidazole-[Os(bipyridine) 2Cl] (PVI-[Os(bpy) 2Cl]) and glucose oxidase (GOD) are assembled inside a film of aligned carbon nanotubes. The structure of the prepared GOD/PVI-[Os(bpy) 2Cl]/CNT composite film is entirely uniform and stable; more than 90% bioelectrocatalytic activity could be maintained even after storage for 6 days. Owing to the ideal positional relationship achieved between enzyme, mediator and electrode, the prepared film shows a high bioelectrocatalytic activity for glucose oxidation (ca. 15 mA cm-2 at 25 °C) with an extremely high electron turnover rate (ca. 650 s -1) comparable to the value for the GOD solutions, indicating almost every enzyme molecules entrapped within the ensemble (ca. 3 × 10 12 enzymes in a 1× 1 mm2 film) can work to the full. The free-standing, flexible composite film can be used by winding on a needle device, for example, a self-powered sugar monitor.

元の言語English
ホスト出版物のタイトルProceedings of the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012
出版者Chemical and Biological Microsystems Society
ページ1867-1869
ページ数3
ISBN(印刷物)9780979806452
出版物ステータスPublished - 2012 1 1
外部発表Yes
イベント16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012 - Okinawa, Japan
継続期間: 2012 10 282012 11 1

出版物シリーズ

名前Proceedings of the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012

Conference

Conference16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012
Japan
Okinawa
期間12/10/2812/11/1

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering

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  • これを引用

    Yoshino, S., Miyake, T., Kaji, H., Yamada, T., Hata, K., & Nishizawa, M. (2012). Ordered molecular assembly inside carbon nanotube forest films for high-efficiency enzymatic biofuel cell. : Proceedings of the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012 (pp. 1867-1869). (Proceedings of the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012). Chemical and Biological Microsystems Society.