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Issue 11, 2007
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pH-dependent fluorescence of uncharged benzothiazole-based dyes binding to DNA

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Abstract

Uncharged benzothiazole-based dyes were synthesized, and their fluorescence properties were examined. These fluorescent dyes showed an intense fluorescence in aqueous solution in the presence of DNA. In addition, the fluorescence intensities were pH dependent, while those of the positively charged dyes were nearly independent of pH. The pH-dependent photophysical behavior suggests that interaction of protonated dyes with DNA results in high intensities of fluorescent emission.

Graphical abstract: pH-dependent fluorescence of uncharged benzothiazole-based dyes binding to DNA

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Supplementary files

Article information


Submitted
08 May 2007
Accepted
18 Sep 2007
First published
05 Oct 2007

Photochem. Photobiol. Sci., 2007,6, 1197-1201
Article type
Paper

pH-dependent fluorescence of uncharged benzothiazole-based dyes binding to DNA

S. Ikeda and A. Okamoto, Photochem. Photobiol. Sci., 2007, 6, 1197
DOI: 10.1039/B706956A

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