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- W2913636699 abstract "Fluorescence immunoassays are rapid, convenient and cost-effective for the sensitive quantitation of chemical contaminants in foodstuff. In this study, a competitive fluorescence ELISA was developed for the sensitive detection of amantadine (AMD) based on the alkaline phosphatase (ALP)-triggered fluorescence “turn-on” signals. As a fluorescence substrate, carbon dots (CDs) were adsorbed onto the surface of the MnO2 nanosheets (NSs) and formed a nanoassembly of [email protected]2 NSs which results in the fluorescence quench of CDs. The ALP labelled on antibody could catalyze the hydrolysis of the 2-phosphoascorbic acid into ascorbic acid. The latter could then reduce and decompose the MnO2 NSs, which was accompanied by the release of CDs from the surface of MnO2 NSs and led to the fluorescence recovery of CDs. The change of the fluorescence intensity is related to the concentration of AMD in solution and thus could be applied to detect AMD in an ALP-based ELISA system. The fluorescent ELISA showed a linear detection for AMD in the range of 0.048 ng mL−1 to 1.1 ng mL−1 with a detection limit (LOD) of 0.035 ng mL−1. The novel fluorescent ELISA shows potential for the highly sensitive detection of AMD and other analytes in food analysis." @default.
- W2913636699 created "2019-02-21" @default.
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- W2913636699 date "2019-05-01" @default.
- W2913636699 modified "2023-10-16" @default.
- W2913636699 title "Development of a fluorescence immunoassay for highly sensitive detection of amantadine using the nanoassembly of carbon dots and MnO2 nanosheets as the signal probe" @default.
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- W2913636699 doi "https://doi.org/10.1016/j.snb.2019.01.100" @default.
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