A novel near-infrared ratiometric fluorescent probe for SO2 detection with a large emission shift

Due to the toxicity of SO2 to the respiratory tract, ingesting an excess of SO2 can cause some respiratory diseases and lung cancer. Thus, the development of efficient methods for the detection of SO2 in biological environments is of great importance. In this work, a ratiometric fluorescent probe, M...

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Bibliographic Details
Published in:New journal of chemistry 2020-03, Vol.44 (11), p.4554-4557
Main Authors: Han, Shaohui, Xiuxiu Yue, Wang, Jingpei, Zhang, Yun, Wang, Benhua, Song, Xiangzhi
Format: Article
Language:English
Subjects:
Emission
Fluorescent indicators
Near infrared radiation
Respiratory diseases
Selectivity
Sulfur dioxide
Toxicity
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Summary:Due to the toxicity of SO2 to the respiratory tract, ingesting an excess of SO2 can cause some respiratory diseases and lung cancer. Thus, the development of efficient methods for the detection of SO2 in biological environments is of great importance. In this work, a ratiometric fluorescent probe, MQC, was constructed and applied for SO2 detection with good selectivity and sensitivity. Probe MQC displayed a near-infrared emission at 715 nm, which underwent a 245 nm blue-shift (470 nm) upon the addition of SO2. Meanwhile, a color change from fuchsia to colorless was observed before and after the treatment of probe MQC with SO2. Biological imaging experiments were performed on probe MQC to detect intracellular SO2 in living cells.
ISSN:1144-0546
1369-9261
DOI:10.1039/c9nj06343a