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Size-tuneable and micro-patterned iron nanoparticles derived from biomolecules via microcontact printing SAM-modified substrates and controlled-potential electrolyses
http://hdl.handle.net/2298/12333
http://hdl.handle.net/2298/12333c7799627-2e31-4ecd-b962-58e9270b0068
| 名前 / ファイル | ライセンス | アクション |
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7.pdf (275.9 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2009-09-10 | |||||
| タイトル | ||||||
| タイトル | Size-tuneable and micro-patterned iron nanoparticles derived from biomolecules via microcontact printing SAM-modified substrates and controlled-potential electrolyses | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | ferritin, pattern, nanoparticles, iron oxide, electrolysis | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
Tominaga, Masato
× Tominaga, Masato× Miyahara, Katsuya× Soejima, Kazuki× Nomura, Shinya× 松本, 学× Taniguchi, Isao |
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| 別言語の著者 |
冨永, 昌人
× 冨永, 昌人× 谷口, 功× 野村, 真也× 副島, 和樹× 宮原, 勝也× 松本, 学 |
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| 内容記述 | ||||||
| 内容記述 | Site-selected and size-controlled iron nanoparticles were prepared on coplanar surfaces via microcontact printing of SAM-modified Au/mica electrodes and controlled-potential electrolytic reactions using ferritin biomolecules. Ferritin molecules packed like a full monolayer on 6-amino-1-hexanethiol (AHT)- and 11-amino-1-undecanethiol (AUT)-modified Au/mica surface via electrostatic interactions, which did not depend on the chain length of the amino terminal alkane thiols. After heat-treatment at 400 °C for 60 min, iron oxide nanoparticles (ca. 5 nm in diameter) derived from ferritin cores were observed at the Au/mica surface by atomic force microscopy (AFM). On the study on the electrochemistry of ferritin immobilized onto AHT- and AUT-modified Au/mica electrodes, the redox response of the ferritin immobilized AHT-modified electrode was clearly observed. On the other hand, no redox peak for ferritin was obtained at the AUT-modified electrode. The electron transfer between ferritin and the electrode through the AUT membrane could not take place. The difference in the electrochemical response of ferritin immobilized onto AHT- and AUT-modified Au/mica was caused by the chain length of the amino terminal alkane thiols. Uniform patterns of AHT and AUT on the Au/mica electrode surface were performed by use of a poly(dimethylsiloxane) (PDMS) stamp. After the immobilization of ferritin onto both AHT- and AUT-modified electrode surfaces, the modified electrode was applied to a - 0.5 V potential for 30 min in a phosphate buffer solution. After this procedure, the PDMS stamp patterning image appeared by scanning electron microscopy (SEM) image. The SEM results induced by the size change of the ferritin core consisting of iron(III) by electrolysis. | |||||
| 書誌情報 |
Journal of Colloid and Interface Science 巻 313, 号 1, p. 135-140, 発行年 2007-09-01 |
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| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00695804 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 関連識別子 | 10.1016/j.jcis.2007.04.037 | |||||
| 権利 | ||||||
| 権利情報 | © Copyright 2007 Elsevier B.V., All rights reserved. | |||||
| 情報源(ISSN) | ||||||
| 関連名称 | 00219797 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 275858 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 | 431.7 | |||||
| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| 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 | ||||||
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| URL | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | http://www.elsevier.com/wps/find/journaldescription.cws_home/622861/description#description | |||||
