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Gold single-crystal electrode surface modified with self-assembled monolayers for electron tunneling with bilirubin oxidase
http://hdl.handle.net/2298/16669
http://hdl.handle.net/2298/16669563b1a27-d20c-4f5e-9d60-41d01013a1cc
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
2008PCCP_tominaga.pdf (2.3 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2010-11-01 | |||||
| タイトル | ||||||
| タイトル | Gold single-crystal electrode surface modified with self-assembled monolayers for electron tunneling with bilirubin oxidase | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | Bilirubin oxidase, electron transfer, catalytic current, self-assembled monolayer, single crystal electrode | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
Tominaga, Masato
× Tominaga, Masato× Ohtani, Mai× Taniguchi, Isao |
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| 別言語の著者 |
冨永, 昌人
× 冨永, 昌人× 大谷, まい× 谷口, 功 |
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| 内容記述 | ||||||
| 内容記述 | Using Au(111) and Au(100) single-crystal electrodes modified with self-assembled monolayers (SAMs), the direct electron transfer reaction of bilirubin oxidase (BOD) adsorbed onto their surfaces was investigated. The BOD adsorbed onto the Au(111), Au(100) and gold /mica electrodes, and the BOD adsorbed onto Au(111) electrodes modified with C3–SO3H and Cn–COOH (n = 2, 5 and 7), showed the electrocatalytic currents of dioxygen reduction based on the direct electron transfer reaction. The BOD adsorbed onto Au(111) electrodes modified with C6–NH2, C6–OH and C5–CH3 did not show any electrocatalytic current. Negatively charged electrode surfaces can give a suitable molecular orientation for the direct electron transfer of BOD. The k° values evaluated by an analysis of the steady-state voltammogram with a simulated fitting method did not depend on the crystal structure of the gold electrode surface. Using a Cn–COOH (n = 2, 5, 7) modified Au(111) electrode, the k° values decreased with an increasing alkyl chain length of Cn–COOH. Based on the k° values obtained from the Cn–COOH (n = 2, 5, 7) modified Au(111) electrodes, the electron tunneling distance was evaluated. The average distance between the type 1 Cu site of BOD and the outside of the BOD protein structure was evaluated to be 17 (±2) Å. | |||||
| 書誌情報 |
Physical Chemistry Chemical Physics 巻 10, 号 46, p. 6928-6934, 発行年 2008-12-14 |
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| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 関連識別子 | 10.1039/b809737b | |||||
| 情報源(ISSN) | ||||||
| 関連名称 | 14639076 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 2274448 bytes | ||||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 431 | |||||
| 出版者 | ||||||
| 出版者 | Royal Society of Chemistry | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文(Article) | |||||
| 資源タイプ・ローカル | ||||||
| 雑誌掲載論文 | ||||||
| 資源タイプ・NII | ||||||
| Journal Article | ||||||
| 資源タイプ・DCMI | ||||||
| text | ||||||
| 資源タイプ・ローカル表示コード | ||||||
| 01 | ||||||
| URL | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | http://pubs.rsc.org/en/Content/ArticleLanding/2008/CP/b809737b | |||||
