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- W2995581570 abstract "In this work, a fluorescent copper nanocluters (CuNCs) has been fabricated with ascorbic acid (AA) as reductant and polyvinyl pyrolidone (PVP) as scaffold in aqueous solution for the on-site detection of hypochlorous acid (HClO) with high sensitivity and selectivity. The CuNCs showed a specific fluorescence quenching toward HClO compared with other reactive oxygen species and ions that are found widely in the environment. The CuNCs also exhibited good linear fluorescence quenching effect on HClO with a limit of detection at 55 nM. The mechanism has been investigated and was attributed to the oxidation of reduced Cu on the surface of CuNCs by HClO. Surprisingly, the fluorescence intensity of the probe was more responsive to HClO in the presence of excessive iodide ions (I-), with a lower detection limit of 19 nM. In acidic conditions, iodine (I2) was generated by HClO oxidation and subsequently reacted with Cu atoms on the surface of CuNCs and form cuprous iodide (CuI) precipitation, resulting in surface d..." @default.
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- W2995581570 date "2019-12-16" @default.
- W2995581570 modified "2023-10-14" @default.
- W2995581570 title "Fluorescent Copper Nanoclusters for the Iodide-Enhanced Detection of Hypochlorous Acid" @default.
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- W2995581570 doi "https://doi.org/10.1021/acsanm.9b01958" @default.
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