Journal
DYES AND PIGMENTS
Volume 90, Issue 3, Pages 239-244Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2011.01.004
Keywords
NBD; Triazole; Fluorescence; Naked-eye detection; Hg2+
Funding
- China Scholarship Council (CSC)
Ask authors/readers for more resources
7-Nitrobenzo-2-oxa-1,3-diazole (NBD) derived compound 1 bearing triazole binding site was used as a selective fluorescent and colorimetric sensor for Hg2+ in aqueous solution. Among the metal ions examined, only Hg(2+)caused significant fluorescence quenching in EtOH/HEPES (v/v = 9:1) at pH 7.4, along with a remarkable red shift in both absorption and fluorescence spectra which then facilitated naked-eye detection. H-1 NMR titration and control experiments by using more rigid triazolyl NBD derivative 2 were carried out to illustrate the complexation mode and the importance of cooperation of amino acid moiety and triazole ring in improving the binding ability of 1 to Hg2+. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available