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Physics, chemistry and biology of Soft Matter
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J. Mater. Chem., 2007, 17, 1964 - 1968, DOI: 10.1039/b618183j
4-(N,N-Dimethylamine)benzonitrile (DMABN) derivatives with boronic acid and boronate groups: new fluorescent sensors for saccharides and fluoride ion
Wei Tan, Deqing Zhang, Zhuo Wang, Caiming Liu and Daoben Zhu
Two DMABN derivatives with boronic acid/boronate groups 1 and 2 were designed and synthesized for sensing saccharides and F–, respectively. Fluorescent spectral changes were observed for 1 after reaction with fructose, galactose, mannose and glucose, and the corresponding binding constants were estimated. The results show that compound 1 can bind fructose more strongly than other saccharides tested. Interestingly, both absorption and fluorescence spectral changes occurred for compound 2 after addition of F–, indicating that compound 2 is a potentially selective sensor for F–.
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