Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 262, Issue -, Pages 57-63Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2018.01.204
Keywords
Hypochlorite; Fluorescent probe; Cyanobiphenyl; Cell imaging
Funding
- National Natural Science Foundation of China [31470434, 21576124, 21507047, 21676124]
- China Postdoctoral Science Foundation [2017M610308]
- Jiangsu Postdoctoral Science Foundation [1701107B]
- Zhenjiang Social development project [SH2016019]
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A fluorescence probe (HBM) based on conjugation of 3'-formy1-4'-hydroxy-4-biphenylcarbonitrile to 2,4-dinitrophenylhydrazune for the detection of hypochlorite has been developed. The probe exhibited a highly sensitive and selective response toward hypochlorite (C10(-)) with a low detection limit of 49 nM. The sensing mechanism was considered that the hypochlorite triggered oxidative hydrolysis of probe HBM and the cyanobiphenyl fluorophore was released, which also have been evidenced by the MS analysis. Most notably, the response time of the probe HBM to the OC1(-) is only a few seconds. The probe was also successfully applied to fluorescence imaging of OC1(-) in the living cells. (C) 2018 Elsevier B.V. All rights reserved.
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