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  1. No Access

    Article

    A catalytic hairpin assembly–based Förster resonance energy transfer sensor for ratiometric detection of ochratoxin A in food samples

    Ochratoxin A (OTA) poses severe risks to the environment and human health, making the development of an accurate and sensitive analytical method for OTA detection essential. In this study, a catalytic hairpin ...

    Hong Zhang, Yuli Wang, Yingtong Lin, Wenjuan Chu… in Analytical and Bioanalytical Chemistry (2023)

  2. No Access

    Article

    G-quadruplex-selective iridium(III) complex as a novel electrochemiluminescence probe for switch-on assay of double-stranded DNA

    In this work, we synthesized an iridium(III) complex and studied its selective ability to interact with a specific G-quadruplex DNA sequence (GTGGGTAGGGCGGGTTGG). Results showed that the iridium(III) complex e...

    Shujie Wu, Songen Wang, Zongbing Li, Chun Wu… in Analytical and Bioanalytical Chemistry (2022)

  3. No Access

    Article

    One-step and ultrasensitive ATP detection by using positively charged nano-gold@graphene oxide as a versatile nanocomposite

    A versatile nanocomposite was simply prepared based upon the electrostatic adsorption of positively charged gold nanoparticles with negatively charged graphene oxide (nano-gold@GO), and utilized as a novel fluore...

    Ning Xue, Shujie Wu, Zongbing Li, **angmin Miao in Analytical and Bioanalytical Chemistry (2020)

  4. No Access

    Article

    Electrochemical aptamer-based determination of protein tyrosine kinase-7 using toehold-mediated strand displacement amplification on gold nanoparticles and graphene oxide

    An electrochemical method is described for ultrasensitive determination of protein tyrosine kinase-7 (PTK7). It is based on (a) the use of positively charged gold nanoparticles (AuNPs) and negatively charged g...

    Zongbing Li, Zhengkun Zhou, Ning Xue, Shujie Wu, **angmin Miao in Microchimica Acta (2019)

  5. No Access

    Article

    Fluorometric determination of mercury(II) using positively charged gold nanoparticles, DNA-templated silver nanoclusters, T-Hg(II)-T interaction and exonuclease assisted signal amplification

    The authors describe a method for detection of Hg2+ by using positively charged gold nanoparticles ((+)AuNPs) as a quencher of the fluorescence of DNA-capped silver nanoclusters (DNA-AgNCs) which are negatively c...

    Haiyan Ma, Ning Xue, Shujie Wu, Zongbing Li, **angmin Miao in Microchimica Acta (2019)

  6. No Access

    Article

    A gold nanoparticle based fluorescent probe for simultaneous recognition of single-stranded DNA and double-stranded DNA

    A fluorescent method is described for simultaneous recognition of single-stranded DNA (ssDNA) and double-stranded DNA (dsDNA). It is based on the quenching of the fluorescence of fluorophore labeled DNA probes...

    Haiyan Ma, Zongbing Li, Ning Xue, Zhiyuan Cheng, **angmin Miao in Microchimica Acta (2018)

  7. Article

    Open Access

    A cyclometalated iridium(III) complex used as a conductor for the electrochemical sensing of IFN-γ

    A novel iridium(III) complex was prepared and used as a conductor for sensitive and enzyme-free electrochemical detection of interferon gamma (IFN-γ). This assay is based on a dual signal amplification mechani...

    **angmin Miao, Chung-Nga Ko, Kasipandi Vellaisamy, Zongbing Li… in Scientific Reports (2017)

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  8. Article

    Open Access

    Sensitive detection of miRNA by using hybridization chain reaction coupled with positively charged gold nanoparticles

    Positively charged gold nanoparticles (+)AuNPs can adsorb onto the negatively charged surface of single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA). Herein, long-range dsDNA polymers could form based o...

    **angmin Miao, Xue Ning, Zongbing Li, Zhiyuan Cheng in Scientific Reports (2016)

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  9. Article

    Open Access

    Application of iridium(III) complex in label-free and non-enzymatic electrochemical detection of hydrogen peroxide based on a novel “on-off-on” switch platform

    We herein report a label-free and non-enzymatic electrochemical sensor for the highly sensitive detection of hydrogen peroxide (H2O2) based on a novel “on-off-on” switch system. In our design, MB was used as an e...

    **angmin Miao, Chao Yang, Chung-Hang Leung, Dik-Lung Ma in Scientific Reports (2016)

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  10. Article

    Open Access

    Triplex DNA: A new platform for polymerase chain reaction – based biosensor

    Non - specific PCR amplification and DNA contamination usually accompany with PCR process, to overcome these problems, here we establish a sensor for thrombin by sequence - specific recognition of the PCR prod...

    Yubin Li, **angmin Miao, Liansheng Ling in Scientific Reports (2015)

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  11. No Access

    Article

    Glucose detection at attomole levels using dynamic light scattering and gold nanoparticles

    Glucose is directly related to brain activity and to diabetes. Therefore, develo** a rapid and sensitive method for glucose detection is essential. Here, label-free glucose detection at attomole levels was r...

    **angMin Miao, ZhaoZhong Feng, Jun Tian, Xue Peng in Science China Chemistry (2014)