Abstract
Cu2+ as an important trace element plays an essential role in various biologic processes due to the unique redox active nature. For this reason, much effort has been made to develop effective methods for Cu2+ detection. In this study, a novel structure fluorescent chemosensor, 1-(6-(((5-(5, 5-difluoro-1, 3, 7, 9-tetramethyl-5H-4λ4, 5λ4-dipyrrolo[1, 2-c:2', 1'-f][1, 3, 2] diazaborinin-10-yl)quinolin-8-yl)oxy)methyl)pyridin-2-yl)-N, N-bis(pyridin-2-ylmethyl)methanamine (1), was synthesized and characterized by 1H and 13C nuclear magnetic resonance spectroscopy, and electrospray ionization mass spectrometry. Sensor 1 showed an obviously “on–off” fluorescence response to Cu2+ with a 1:1 binding stoichiometry by UV–vis and fluorescence spectrophotometry. The detection limit of sensor 1 to Cu2+ was determined to be 1.9 µM, and the stable pH range for Cu2+ detection was from 3 to 13. Sensor 1 can be used for recognition and detection of tyrosinase in potatoes.
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I would like to declare on behalf of my co-authors that the data supporting the findings of this study are available within the paper. Should any raw data files be needed in another format they are available from the corresponding author upon reasonable request. Source data are provided with this paper.
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The Science and Technology Innovation Project of Shanxi Agricultural University, 2020BQ18, xianjiao meng, Basic Research Program of Shanxi Province, 20210302124125, jingjing li.
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Meng, Xj., Zhang, Yr., Li, Jj. et al. A Cu2+ fluorescent chemosensor suitable for quantitative detection of tyrosinase in potatoes over a wide pH range. ANAL. SCI. (2024). https://doi.org/10.1007/s44211-024-00546-2
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DOI: https://doi.org/10.1007/s44211-024-00546-2