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Issue 43, 2018
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Construction of a novel near-infrared fluorescent probe with multiple fluorescence emission and its application for SO2 derivative detection in cells and living zebrafish

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Abstract

Sulfur dioxide (SO2) in biological systems is an important gaseous signal molecule and plays important roles in physiological activities. It can be endogenously produced by enzymes in mitochondria during oxidation of sulphur-containing molecules. Thus, the development of probes for sulfur dioxide detection in biological environment is necessary. Here, a new near-infrared fluorescent probe (Rh-TPA) with multiple fluorescence emission was constructed and applied for SO2 derivative detection. Rh-TPA was constructed via conjugation of a rhodamine analogue with a triphenylamine group. Rh-TPA exhibited a major emission peak at 740 nm and a shoulder peak at 810 nm. After interacting with SO2 derivatives, the conjugated system dissociated into two smaller chromophores with two emission peaks (520 nm and 570 nm) in the visible region. The probe showed negligible cytotoxicity, as demonstrated by the MTT results. Biological imaging application experiments indicated that the probe can be used to image SO2 derivatives in HeLa cells and living zebrafish.

Graphical abstract: Construction of a novel near-infrared fluorescent probe with multiple fluorescence emission and its application for SO2 derivative detection in cells and living zebrafish

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Publication details

The article was received on 02 Aug 2018, accepted on 05 Oct 2018 and first published on 06 Oct 2018


Article type: Paper
DOI: 10.1039/C8TB02030B
Citation: J. Mater. Chem. B, 2018,6, 7060-7065
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    Construction of a novel near-infrared fluorescent probe with multiple fluorescence emission and its application for SO2 derivative detection in cells and living zebrafish

    K. Liu, Y. Chen, H. Sun, S. Wang and F. Kong, J. Mater. Chem. B, 2018, 6, 7060
    DOI: 10.1039/C8TB02030B

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