Electric-field-induced changes in absorption and fluorescence of the green fluorescent protein chromophore in a PMMA film

Takakazu Nakabayashi, Kazuyuki Hino, Yuka Ohta, Sayuri Ito, Hirofumi Nakano, Nobuhiro Ohta

研究成果: Article査読

12 被引用数 (Scopus)

抄録

External electric field effects on absorption, fluorescence, and fluorescence decay of p-HBDI that is a model compound of the chromophore of GFP have been examined in a poly(methyl methacrylate) film. The electroabsorption spectrum is similar in shape to the first derivative of the absorption spectrum, which results from the difference in molecular polarizability between the ground state and the Franck-Condon excited state. The electrophotoluminescence spectrum is dominated by the corresponding fluorescence spectrum, indicating the enhancement of the fluorescence intensity in the presence of external electric fields. The direct measurements of the electric field effect on the fluorescence decay profile suggest that the field-induced deceleration of the nonradiative process contributes to the increase in the fluorescence intensity in the presence of electric fields.

本文言語English
ページ(範囲)8622-8626
ページ数5
ジャーナルJournal of Physical Chemistry B
115
26
DOI
出版ステータスPublished - 2011 7 7
外部発表はい

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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