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

*この研究の対応する著者

研究成果: Conference contribution

抄録

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.

本文言語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
出版社Chemical and Biological Microsystems Society
ページ1867-1869
ページ数3
ISBN(印刷版)9780979806452
出版ステータスPublished - 2012 1月 1
外部発表はい
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月 282012 11月 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
国/地域Japan
CityOkinawa
Period12/10/2812/11/1

ASJC Scopus subject areas

  • 化学工学(その他)
  • バイオエンジニアリング

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