Journal
TETRAHEDRON LETTERS
Volume 55, Issue 16, Pages 2633-2638Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2014.03.003
Keywords
Fluorimetric; Colorimetric; Benzothiazole; X-ray; Test trips; Cell-biology
Categories
Funding
- DST
- CSIR (Govt. of India)
- CSIR
- Deanship of Scientific Research at King Saud University [RGP-VPP-207]
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A ratiometric fluorescent turn-on probe for fluoride ion, based on modulation of the excited-state intramolecular proton transfer (ESIPT) process by chemodosimetric desilylation pathway is reported. The probe SNBT (silyl protected hydroxynaphthalene benzothiazole moiety) shows a significant increase of ratiometric absorption band at 440 nm and emission band at 477 nm by the deprotection of fluoride mediated silyl bond cleavage in CH3CN-H2O (8/2, v/v, 25 degrees C). The test strips based on SNBT and F- are fabricated, which can act as a convenient and efficient F- test kits. Furthermore, the biological application shows that it can be very useful as a selective fluoride probe in the fluorescence imaging of living cells. (C) 2014 Elsevier Ltd. All rights reserved.
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