Supramolecular design of a porphyrin-[60]fullerene photocurrent generation system on a DNA scaffold fabricated by a conjugate polymer film

Ah Hyun Bae, Tsukasa Hatano, Kazunori Sugiyasu, Takanori Kishida, Masayuki Takeuchi, Seiji Shinkai

研究成果: Article査読

16 被引用数 (Scopus)

抄録

DNA which binds monocationic [60]fullerene (1) and tetracationic porphyrin (TMPyP) was readily fabricated by electrochemical oxidative polymerization of 3.4-ethylenedioxythiophene (EDOT) and the resultant poly(EDOT) composite was deposited on an ITO electrode as a stable thin film. Spectral and CV analyses established that one 1 and one TMPyP are bound per 57 nucleobase units, that is, every three pitches of DNA. Photoirradiation of this 1/TMPyP/DNA-poly(EDOT) film generated a photocurrent in 3.8% quantum yield, which was much higher than those obtained from 1/DNA and TMPyP/DNA systems. One can conclude, therefore that the photoexcited energy of TMPyP is transferred to 1, which is collected by the electron-conducting poly(EDOT) film. The present paper shows that DNA is useful as a scaffold to arrange redox-active couples in a one-dimensional matrix.

本文言語English
ページ(範囲)3169-3173
ページ数5
ジャーナルTetrahedron Letters
46
18
DOI
出版ステータスPublished - 2005 5 2
外部発表はい

ASJC Scopus subject areas

  • 生化学
  • 創薬
  • 有機化学

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