Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 5, Pages 655-658Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc07398a
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Funding
- Natural Science Foundation of China [21775096, 21878180]
- Shanxi Province 1331 project Key Innovation Team Construction Plan Cultivation Team [2018 -CT-1]
- 2018 Xiangyuan County Solid Waste Comprehensive Utilization Science and Technology Project [2018XYSDJS-05]
- Shanxi Province Foundation for Returnees [2017-026]
- Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes [2015-10-B3]
- Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi [2020L0541]
- Key R&D Program of Shanxi Province [201903D421069]
- Key R&D and Transformation Plan of Qinghai Province [2020-GX-101]
- Scientific Instrument Center of Shanxi University [201512]
- Shanxi Province 2019 Annual Science and Technology Activities for Overseas Students Selected Funding Projects
- Innovative Talents of Higher Education Institutions of Shanxi
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By utilizing a HBT-based fluorophore, the study successfully demonstrated ESIPT process with enhanced emission in the near-infrared region. This probe was able to image SO2 derivatives in cells and mice, offering new ideas for the development of long-wavelength emission fluorescence probes.
Based on the change in electron distribution of the benzopyrylium unit before and after sulfite addition, a 2-(2 '-hydroxyphenyl)benzothiazole (HBT)-based fluorophore generated the excited state intramolecular proton transfer (ESIPT) process with a near-infrared enhanced emission at 836 nm and a large Stokes shift (286 nm). The probe was applied to image SO2 derivatives in cells and mice. Our data will provide new ideas for the development of ESIPT-based fluorescence probe with longer wavelength emission.
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