Xiujuan Li, Xinyuan Ma, Zhaogang Chen, Shoucheng Wang, Fengjin Liu, Jiancai Ding, Hao Jiang, Hang Wu, Xiufang Li, Xinchao Wang
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引用次数: 0
Abstract
Sulfur dioxide (SO2) is ubiquitously present in environmental and biological samples, predominantly as HSO3-/SO32- in aqueous solutions. While their controlled utilization underpins industrial and agricultural processes, excessive residual SO₂ poses severe threats to ecological sustainability and physiological homeostasis in organisms. To address the pressing need for rapid, real-time monitoring of these species, we developed a novel D-π-A structured fluorescent probe, TPA-SO₂, engineered through rational integration of triphenylamine as a robust electron-donating moiety. This probe exhibits excellent water solubility. Photophysical experiments revealed that the probe possesses high selectivity, instantaneous response (< 10 s), and a low detection limit (21.4 nM) for SO2 derivatives in PBS solution. Experimental results demonstrate the probe's applicability for detecting SO2 residues in various food products and for imaging SO2 derivatives in living cells.
期刊介绍:
Journal of Fluorescence is an international forum for the publication of peer-reviewed original articles that advance the practice of this established spectroscopic technique. Topics covered include advances in theory/and or data analysis, studies of the photophysics of aromatic molecules, solvent, and environmental effects, development of stationary or time-resolved measurements, advances in fluorescence microscopy, imaging, photobleaching/recovery measurements, and/or phosphorescence for studies of cell biology, chemical biology and the advanced uses of fluorescence in flow cytometry/analysis, immunology, high throughput screening/drug discovery, DNA sequencing/arrays, genomics and proteomics. Typical applications might include studies of macromolecular dynamics and conformation, intracellular chemistry, and gene expression. The journal also publishes papers that describe the synthesis and characterization of new fluorophores, particularly those displaying unique sensitivities and/or optical properties. In addition to original articles, the Journal also publishes reviews, rapid communications, short communications, letters to the editor, topical news articles, and technical and design notes.