Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 346, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2021.130484
Keywords
Near-infrared; Hypochlorite anion; Fluorescent probe; Imaging
Funding
- NNSFC [21772078, 22071200]
- Fundamental Research Funds for the Central Universities [2682020CX55, 2682021ZTPY011, XJ2021KJZK004]
- MoE of China
- Science and Technology Department of Sichuan Province [2020JDRC0021]
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The near-infrared fluorescent probe SWJT-1, based on C=N isomerization, shows excellent response to ClO with low detection limit, high selectivity, and rapid detection. The sensing mechanism of SWJT-1 for ClO has been confirmed through various analytical techniques, and it has been successfully applied in bioimaging for the detection of ClO in vitro and vivo.
A near-infrared (NIR) fluorescent probe (SWJT-1) based on C=N isomerization was designed and synthesized for the detection of ClO center dot SWJT-1 showed an excellent NIR fluorescent response to ClO and a visible colorimetric change from yellow to pink. Meanwhile, it showed low detection limit (11.51 nM), high selectivity and rapid detection (<= 2 s) for ClO over various interfering analytes. The sensing mechanism of SWJT-1 for ClOwas confirmed by H NMR, ESI-MS and density functional theory (DFT) calculation. Furthermore, this probe had been successfully applied to the bioimaging for the detection of ClO< in vitro and vivo.
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