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測量應(yīng)用案例-20201208

來源:美國布魯克海文儀器公司   2020年12月26日 11:16  
 文獻(xiàn)名: Second Near-Infrared Aggregation-Induced Emission Fluorophores with Phenothiazine Derivatives as the Donor and 6,7-Diphenyl-[1,2,5]Thiadiazolo[3,4-g]Quinoxaline as the Acceptor for In Vivo Imaging

 

 

 

作者: Shun Li, Changfeng Yin, Ruonan Wang, Quli Fan, Wei Wu*, and Xiqun Jiang

Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China

 

 

摘要:Traditional organic fluorophores generally have hydrophobic conjugated backbones and exhibit an aggregation-caused quenching emission property, which limits greatly their applications in the biological field. Aggregation-induced emission (AIE) fluorophores can breakthrough this shortcoming and are more promising in biological imaging. In this paper, we synthesized three novel donor–acceptor–donor-type second near-infrared (NIR-II) fluorophores and studied their geometric and electronic structures and photophysical properties by both theoretical and experimental studies. All the three fluorophores had typical AIE characteristics, and their emission wavelength spanned the traditional near-infrared and NIR-II regions. They exhibited much stronger fluorescence after being encapsulated in polymer nanoparticles (NPs) than in solutions, and the fluorophore-loaded NPs had desirable biosafety and significant tumor accumulation, indicating that they have great application potentials in tumor detection.

 

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