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    Article

    Thermally treated bare gold nanoparticles for colorimetric sensing of copper ions

    We demonstrate a sensitive and rapid colorimetric assay for selective detection of copper ions based on the strong coordination between Cu(II) ions and the tetrahydroxyaurate anions [Au(OH)4] on the surface of t...

    Hao-Hua Deng, Guang-Wen Li, Ai-Lin Liu, Wei Chen, **n-Hua Lin in Microchimica Acta (2014)

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    Article

    Colorimetric glutathione assay based on the peroxidase-like activity of a nanocomposite consisting of platinum nanoparticles and graphene oxide

    This work describes a colorimetric glutathione (GSH) assay that is taking advantage of (a) the peroxidase-like activity of a nanocomposite prepared from platinum nanoparticles and graphene oxide (PtNP/GO), (b)...

    Hui-Huang Xu, Hao-Hua Deng, **ao-Qing Lin, Yan-Yu Wu, **u-Ling Lin in Microchimica Acta (2017)

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    Article

    Preparation of strongly fluorescent water-soluble dithiothreitol modified gold nanoclusters coated with carboxychitosan, and their application to fluorometric determination of the immunosuppressive 6-mercaptopurine

    Water-soluble and non-aggregating gold nanoclusters (AuNCs) were obtained by modification of the AuNCs with dithiothreitol (DTT) and then coating them with carboxylated chitosan. This process remarkably enhanc...

    Hao-Hua Deng, Kai-Yuan Huang, Qiong-Qiong Zhuang, Quan-Quan Zhuang in Microchimica Acta (2018)

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    Article

    Colorimetric tyrosinase assay based on catechol inhibition of the oxidase-mimicking activity of chitosan-stabilized platinum nanoparticles

    It is found that catechol inhibits the oxidase-mimicking activity of chitosan-protected platinum nanoparticles (Chit-PtNPs) by competing with the substrate for the active site of the Ch-PtNPs. The inhibition m...

    Hao-Hua Deng, **u-Ling Lin, Shao-Bin He, Gang-Wei Wu, Wei-Hua Wu in Microchimica Acta (2019)

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    Article

    Improved enzymatic assay for hydrogen peroxide and glucose by exploiting the enzyme-mimicking properties of BSA-coated platinum nanoparticles

    Platinum nanoparticles (Pt NPs) covered with a bovine serum albumin scaffold and a particle size of 1.5 nm (BSA-PtS NPs) are shown to display enhanced multiple enzyme-mimicking activities including peroxidase, ox...

    Shao-Bin He, Rui-Ting Chen, Yan-Yu Wu, Gang-Wei Wu, Hua-** Peng in Microchimica Acta (2019)

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    Article

    Immunofluorescent-aggregation assay based on anti-Salmonella typhimurium IgG-AuNCs, for rapid detection of Salmonella typhimurium

    Sensitive and rapid detection of pathogenic bacteria plays an important role in avoiding food poisoning. However, the practical application value of conventional assays for detection of foodborne bacteria, are...

    Quan-Quan Zhuang, Shao-Bin He, Yan-Cheng Jiang, Kai-Yuan Huang in Microchimica Acta (2022)