期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 188, 期 -, 页码 324-331出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2017.07.020
关键词
Fluorescent sensor; Zn2+; Hydrazone; Quinoline
类别
资金
- National Natural Science Foundation of China [21001040, U1304202, U1604124]
- National Natural Science Foundation of Henan Province [U1304202, U1604124]
- Science and Technology Department of Henan Province [162300410011, 162300410236, 152102210343]
- Education Department of Henan Province [15B150016, 2014GGJS-045, 15HASTIT002]
A simple chemosensor, namely, N-((quinolin-8-yl)methylene)acetohydrazide (1) was synthesized and used as an off-on fluorescence sensor, which exhibits high selectivity toward Zn2+ in aqueous media. The probe has large Stokes shift of >200 nm, and its detection limit for Zn2+ is 893 nM. The binding process was confirmed through UV-vis absorption analysis, fluorescence measurements, mass spectroscopy study, H-1 NMR spectra and density functional theory calculation. The crystal structures of Zn2+, Ni2+, and Cu2+ complexes based on 1 were determined through X-ray crystallographic analysis. The fluorescent probe was then applied to monitor intracellular Zn2+ in HeLa cells. (C) 2017 Published by Elsevier B.V.
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