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Proceedings Paper

Fluorescent chemosensors that signal carbohydrates in aqueous solution: a novel mechanism for signal transduction is required and found
Author(s): Juyoung Yoon; Anthony W. Czarnik
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Paper Abstract

2-Anthrylboronic acid (pKa 8.8) displays decreased fluorescence in the boronate form compared with its boronic acid form, which we attribute to photoinduced electron transfer. When the boronic acid complexes to polyols such as fructose, the pKa of the complex decreases; thus, the fluorimetrically determined pKa of the 2-anthrylboronic acid:fructose borate ester is 5.9. These properties combined permit polyol complexation in water to be observed spectrofluorimetrically, which has not been reported previously. Fructose binds with a fluorimetrically determined Kd of 3.7 mM.

Paper Details

Date Published: 30 April 1993
PDF: 5 pages
Proc. SPIE 1796, Chemical, Biochemical, and Environmental Fiber Sensors IV, (30 April 1993); doi: 10.1117/12.143499
Show Author Affiliations
Juyoung Yoon, Ohio State Univ. (United States)
Anthony W. Czarnik, Ohio State Univ. (United States)


Published in SPIE Proceedings Vol. 1796:
Chemical, Biochemical, and Environmental Fiber Sensors IV
Robert A. Lieberman, Editor(s)

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