Journal
INORGANIC CHEMISTRY COMMUNICATIONS
Volume 115, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.inoche.2020.107882
Keywords
Fluorescent sensing; Zinc; Anthracene; Cell imaging; Zebrafish; Theoretical calculations
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Funding
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) [104.03-2014.49]
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A new fluorescent chemosensor (An3) bearing anthracenyl rings was designed and developed for detection of Zn2+. Addition of Zn2+ into An3 gave rise to a fluorescent turn-on response at 424 nm whereas Al3+, Cd (2+), Co2+, Cu2+, K+, Mg2+, Zn2+, Ca2+, Fe3+, Mn2+, Ni2+, Pb2+, and Hg2+ did not induce any emission intensity enhancement. Furthermore, the probe exhibited high selectivity toward Zn2+ and a very low detection limit (36 nM) based on chelation-enhanced fluorescence. Theoretical calculations revealed the possible formation of 1:1 and 1:2 complexes between An3 and Zn2+. In bioimaging experiments, the chemosensor displayed low cytotoxicity and good biocompatibility, rendering it an effective tool for fluorescent visualization of Zn2+ in living cells and zebrafish models.
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