期刊
TALANTA
卷 153, 期 -, 页码 381-385出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2016.03.040
关键词
Fluorescent chemosensor; Turn on response; Aqueous solution; Zinc; Cell imaging
资金
- National Natural Science Foundation of China [51502079, 21501150, 21575034]
- Fundamental Research Funds for the Henan Provincial Colleges and Universities [2015QNJH09]
- Science Foundation of Henan University of Technology [201585004]
- Scientific Research Foundation for Young Teacher of Zhengzhou University [51099075]
Pyridoxal-2-hydrazinopyridine Schiff-base (1) was prepared by one-step synthesis from commercially available materials of pyridoxal and 2-hydrazinopyridine. Compound 1 could be applied as a fluorescent chemosensor for Zn(II) in aqueous solution at pH 7.4. After binding to Zn(II) with a molar ratio of 1:1, 1 exhibited 17-fold fluorescence enhancement. In addition, 1 showed a good selectivity toward Zn(II) over other metal ions, which can especially distinguish Zn(II) from Cd(II). A linear range of 5.0-20.0 mu mol L-1 and a detection limit of 70 nmol L-1 were also achieved. Moreover, the utility of chemosensor 1 in bioimaging of Zn(II) in living cells was demonstrated, which suggested that 1 could be used as a Zn(II)-selective chemosensor in biological samples. (C) 2016 Elsevier B.V. All rights reserved.
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