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  1. No Access

    Article

    Cotton swabs wrapped with three-dimensional silver nanoflowers as SERS substrates for the determination of food colorant carmine on irregular surfaces

    A lightweight, portable, low-cost, and accessible cotton swab was employed as surface enhanced Raman spectroscopy (SERS) matrix template. The silver nanoflowers were in situ grown on the surface of cotton swa...

    Sihang Zhang, Kejun **, Jiechen Xu, Jiangtao Xu, Lei Ding, Long Wu… in Microchimica Acta (2024)

  2. No Access

    Article

    Analysis of glycan expression on cell surfaces by using a glassy carbon electrode modified with MnO2 nanosheets and DNA-generated electrochemical current

    Electrochemical assay for analysis of cell surface glycan expression is reported. Mannose on human breast cancer cells (type MCF-7) is selected as the glycan model. Gold nanoparticles are modified with binding...

    Kejun Feng, Fangli Liao, Minghui Yang in Microchimica Acta (2020)

  3. No Access

    Article

    Upconversion photoluminescence analysis of fluoroquinolones

    The characteristics of the upconversion (UC) photoluminescence (PL) of fluoroquinolones (FQs) are reported here for the first time. Using UC PL, a simple, sensitive, and cost-effective method of determining FQ...

    Qiuju Zhou, **aoyan Deng, Yajun Fang, Kejun Tan in Analytical and Bioanalytical Chemistry (2019)

  4. No Access

    Article

    Amperometric detection of microRNA based on DNA-controlled current of a molybdophosphate redox probe and amplification via hybridization chain reaction

    An electrochemical sensor is described for the determination of microRNA-21 by combing the DNA generated current with target-triggered hybridization chain reaction (HCR). A thiol-modified hairpin capture probe...

    Kejun Feng, ** Liu, Lei Deng, Hongjian Yu, Minghui Yang in Microchimica Acta (2017)

  5. Article

    Open Access

    Modification of Ammonia Decomposition Activity of Ruthenium Nanoparticles by N-Do** of CNT Supports

    The use of ammonia as a hydrogen vector has the potential to unlock the hydrogen economy. In this context, this paper presents novel insights into improving the ammonia decomposition activity of ruthenium nano...

    Tamsin E. Bell, Guowu Zhan, Kejun Wu, Hua Chun Zeng… in Topics in Catalysis (2017)

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  6. No Access

    Article

    Water-dispersed carboxymethyl cellulose-montmorillonite-single walled carbon nanotube composite with enhanced sensing performance for simultaneous voltammetric determination of two trace phytohormones

    A simple and sensitive method for the simultaneous voltammetric detection of two trace phytohormones both indole-3-acetic acid (IAA) and salicylic acid (SA) was successfully realized using composite film modif...

    Shuangshuang Lu, Ling Bai, Yang** Wen… in Journal of Solid State Electrochemistry (2015)

  7. No Access

    Article

    Study on the Mutagenic Properties of Mutagen Using Piezoelectric Impedance Microbial Sensing

    The characteristics of mutagenic growth of Salmonella trphimurium strain TA100 induced by sodium azide were investigated by piezoelectric impedance microbial sensing. The variation of motional resistance (ΔR1) ve...

    Kejun Zhong, Han Tao, Wanzhi Wei, Lu Tian, Youan Mao, Jianjun **a in Microchimica Acta (2005)

  8. No Access

    Article

    A kinetic model and its parameter estimation for the process of binding copper to human serum albumin by a voltammetric method

    Linear sweep anodic strip** voltammetry was applied to determine the concentration of free copper ions in the process of binding copper to human serum albumin (HSA) on the mercaptoethane sulfonate modified g...

    Kejun Zhong, Jianjun **a, Wanzhi Wei, Yanbo Hu… in Analytical and Bioanalytical Chemistry (2005)