期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 254, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2021.119604
关键词
Non-aromatic fluorescent materials; Intrinsic fluorescence emission; Clustering-triggered emission; Biological cell imaging; Luminescence mechanism; Extremely alkaline pH
类别
资金
- National Natural Science Foundation of China [21477047, 51903139]
- Natural Science Foundation of Shandong Province [ZR2017MEM006]
This study introduces a biomimetic fluorescent molecule CA-AEP with a dipeptide structure that emits bright biomimetic fluorescence in aqueous solutions by adjusting the pH, a characteristic explained by the clustering-triggered emission (CTE) mechanism. CA-AEP can also be used to monitor the maximum dynamic pH in alkaline aqueous systems, and cytotoxicity assays show it is non-toxic to A549 cells. This work provides a new type of luminogen with potential applications in environmental monitoring and cell biology.
Non-aromatic fluorescent materials with inherent visible light emission have received widespread atten-tion. In this work, a biomimetic fluorescent molecule CA-AEP with a dipeptide structure is introduced. CA-AEP will emit bright biomimetic fluorescence in aqueous solutions by adjusting the pH, which has never been reported. This unique luminescent characteristic can be rationalized by the clustering-triggered emission (CTE) mechanism. In addition, CA-AEP can be used to monitor the maximum dynamic pH in the alkaline range of aqueous systems. Finally, the cytotoxicity assay to A549 cells showed that CA-AEP was non-toxic. Therefore, this work provides a new type of luminogen, which has potential applica-tion prospects in the field of environmental monitoring and cell biology. ? 2021 Elsevier B.V. All rights reserved.
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