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    Article

    Demonstration of a simple, economical and practical technique utilising an imprinted polymer for metal ion sensing

    This paper describes a simple, economical and practical optical sensor that has been developed using an ion imprinted polymer for detecting copper(II) ion using reflectance spectrometry. The imprinted polymer ...

    Sing-Muk Ng, Ramaier Narayanaswamy in Microchimica Acta (2010)

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    Size-controlled microbeads through the influence of the coalescence effect in the emulsification solvent evaporation method

    This paper reports a novel, simple, repeatable and cost-effective protocol for producing Ca-alginate beads with controlled sizes ranging from 50–250 μm with a narrow size distribution. The characteristics of t...

    Syed Izhar Haider Abdi, Sing Muk Ng, Jeong Yeon Choi, Ji Min Seo in Macromolecular Research (2010)

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    Detection of Sn(II) ions via quenching of the fluorescence of carbon nanodots

    We report that fluorescent carbon nanodots (C-dots) can act as an optical probe for quantifying Sn(II) ions in aqueous solution. C-dots are synthesized by carbonization and surface oxidation of preformed sago ...

    Siti Nur Akmar Mohd Yazid, Suk Fun Chin, Suh Cem Pang, Sing Muk Ng in Microchimica Acta (2013)

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    Article

    Synthesis of yellow fluorescent carbon dots and their application to the determination of chromium(III) with selectivity improved by pH tuning

    Carbon dots with yellow fluorescence (y-CDs) were synthesized from sucrose by acid carbonization with phosphoric acid as the dehydrating agent. Optimal yield was obtained by heating sucrose in concentrated pho...

    Melissa May Fung Chang, Irine Runnie Ginjom, Maria Ngu-Schwemlein in Microchimica Acta (2016)