Fluorescent determination of zinc by a quinoline-based chemosensor in aqueous media and zebrafish

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A quinoline-based fluorescence sensor QDTD was developed for Zn2+. QDTD can detect Zn2+ by fluorescence turn-on. Detecting limit (0.27 mu M) of QDTD for Zn2+ was far below WHO standard (76.0 mu M). For the practical application, compound QDTD could be used to determine Zn2+ in real samples and applied to the test kit. More importantly, QDTD was expertly applied for Zn2+ imaging in HeLa cells and zebrafish with good membrane-permeability. Detection mechanism of Zn2+ ion by compound QDTD was suggested through the analytical tools like (HNMR)-H-1 titration, ESl-MS, Job plot, fluorescent and UV-vis titration, and theoretical calculations, and through the synthesis and applications of a model compound AAQA. (C) 2019 Elsevier B.V. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2019-08
Language
English
Article Type
Article
Citation

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, v.219, pp.74 - 82

ISSN
1386-1425
DOI
10.1016/j.saa.2019.04.044
URI
http://hdl.handle.net/10203/263222
Appears in Collection
CH-Journal Papers(저널논문)
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