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- W2897721646 abstract "Nitrogen-doped carbon dots (N-CDs) were prepared by adjusting the ratio of carbon sources (citric acid) and nitrogen sources (ethanolamine). This N-CDs fluorescent probe had been successfully applied to rapidly, sensitively and selectively determine the concentration of mercury ion (Hg2+) with a linear range of 0.1-5.0 μM and a limit of detection of 0.019 μM. In this work, it was demonstrated that N-CDs show the fluorescence response toward Hg2+ when the carboxyl groups of citric acid reacts completely with the amino groups of ethanolamine. In addition, the quenched N-CDs/Hg2+ system could be recovered by biothiol, such as cysteine (Cys), homocysteine (Hcy) and glutathione (GSH), exhibiting a sensitive response toward Cys and Hcy over GSH in HEPES buffer. N-CDs could be used as a potential fluorescent bioimaging material due to their low toxicity and good biocompatibility. Furthermore, an IMPLICATION logic gate based on Hg2+ and biothiol was constructed." @default.
- W2897721646 created "2018-10-26" @default.
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- W2897721646 date "2019-03-01" @default.
- W2897721646 modified "2023-10-16" @default.
- W2897721646 title "Nitrogen-doped carbon dots rapid and selective detection of mercury ion and biothiol and construction of an IMPLICATION logic gate" @default.
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- W2897721646 doi "https://doi.org/10.1016/j.talanta.2018.09.114" @default.
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