Journal
CHEMICAL SCIENCE
Volume 13, Issue 38, Pages 11280-11293Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2sc03136a
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Funding
- National Natural Science Foundation of China (NSFC) [21908030, 22174023]
- Research Program of Science and Technology Commission of Shanghai Municipality [20S31903700, 22QA1406700]
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Polymethine cyanine dyes have attracted increasing attention in fluorescent bioimaging applications due to their high molar extinction coefficients, intensive fluorescence brightness, and flexible wavelength tunability. Recent advances in the development of NIR-II polymethine fluorophores have focused on improving optical performance, including tunable fluorescence, improved brightness, water solubility, and stability. This review summarizes the molecular tailoring design strategies and highlights representative bioimaging and biosensing applications. The potential challenges and perspectives of NIR-II polymethine fluorophores in this emerging field are also discussed.
Polymethine cyanine dyes, as the most important class of organic near-infrared-II (NIR-II) fluorophores, recently received increasing attention due to their high molar extinction coefficients, intensive fluorescence brightness, and flexible wavelength tunability for fluorescent bioimaging applications. Very recently, remarkable advances have been made in the development of NIR-II polymethine fluorophores with improved optical performance, mainly including tunable fluorescence, improved brightness, improved water solubility and stability. In this review, we summarize the recent research advances in molecular tailoring design strategies of NIR-II polymethine fluorophores, and then emphasize the representative bioimaging and biosensing applications. The potential challenges and perspectives of NIR-II polymethine fluorophores in this emerging field are also discussed. This review may provide guidance and reference for further development of high-performance NIR-II polymethine fluorophores to boost their clinical translation in the future.
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