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- W3120965722 abstract "As a kind of bioactive sulfur species, biothiols (Cys, Hcy, and GSH) play an irreplaceable role in regulating the redox balance of life processes. Because of their similar chemical structures and properties, a sulfydryl group, and an amino group, it is an important challenge to distinguish two or more of them at the same time. Herein, a fluorescent sensor (NTPC) based on the coumarin structure was developed to discriminate Cys/Hcy and GSH simultaneously. The sensor has no fluorescence due to the d-PET effect but displays strong fluorescence after its reaction with biothiols. There are two potential reaction sites (nitrophenyl sulfide group and aldehyde group) in the structure of NTPC, resulting in different fluorescent signal changes after reacting with biothiols (green for Cys and Hcy and red for GSH). Under double-wavelength excitation, the sensor shows low background fluorescence, high selectivity, and low detection limits toward biothiols. Moreover, the sensor can be used to discriminate different biothiols (Cys/Hcy and GSH) in cells and zebra fish by different fluorescence signals with low toxicity and might provide a promising tool for studying the roles of different biothiols in various physiological and pathological processes." @default.
- W3120965722 created "2021-01-18" @default.
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- W3120965722 date "2021-01-05" @default.
- W3120965722 modified "2023-10-09" @default.
- W3120965722 title "Simple Turn-On Fluorescent Sensor for Discriminating Cys/Hcy and GSH from Different Fluorescent Signals" @default.
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- W3120965722 doi "https://doi.org/10.1021/acs.analchem.0c04100" @default.
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