Перегляд за автором "Xu, G."

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  • Зображення мініатюри
    Публікація
    A single-electrode electrochemical system for multiplex electrochemiluminescence analysis based on a resistance induced potential difference†
    (Chemical Science, 2018) Gao, W.; Muzyka, K.; Ma, X.; Loua, B.; Xu, G.
    Developing low-cost and simple electrochemical systems is becoming increasingly important but still challenged for multiplex experiments. Here we report a single-electrode electrochemical system (SEES) using only one electrode not only for a single experiment but also for multiplex experiments based on a resistance induced potential difference. SEESs for a single experiment and multiplex experiments are fabricated by attaching a self-adhesive label with a hole and multiple holes onto an ITO electrode, respectively. This enables multiplex electrochemiluminescence analysis with high sensitivity at a very low safe voltage using a smartphone as a detector. For the multiplex analysis, the SEES using a single electrode is much simpler, cheaper and more user-friendly than conventional electrochemical systems and bipolar electrochemical systems using electrode arrays. Moreover, SEESs are free from the electrochemiluminescent background problem from driving electrodes in bipolar electrochemical systems. Since numerous electrodes and cover materials can be used to fabricate SEESs readily and electrochemistry is being extensively used, SEESs are very promising for broad applications, such as drug screening and high throughput analysis.
  • Зображення мініатюри
    Публікація
    Apparatus “Spark” for luminescent and electrochemiluminescent measurements 
    (Przeglad Electrotochniczny, 2018) Snizhko, D.; Ghazi Bani-Khaled; Muzyka, K.; Xu, G.
    The article is devoted to the development of the apparatus “Spark” for integration a photodetector with a current output in a measurement system. Developed apparatus “Spark” includes a current-to-voltage converter, an output filter, and a source of a high voltage, that are sufficient to combine a photomultiplier tube with a different analytical instrumentation. Use of apparatus “Spark” with electrochemical station CHI 800C CH Instrument and photomultiplier tube CR-105 by Hamamatsu Photonics is shown by over an electrochemiluminescent assay of a test solution.
  • Зображення мініатюри
    Публікація
    Electrochemiluminescence in Tryptophan / Tetraphenylborate System for Biosamples Assay
    (ISBC, 2018) Zholudov, Yu.; Lysak, N.; Xu, G.
    L-tryptophan is one of the most important essential amino acids which role in the human body is invaluable. It participates in maintaining of nitrogen balance in metabolism, in the synthesis of muscle proteins, enzymes, antibodies of the immune system and other biologically active substances. Thus the development of reliable methods for quantitative determination of this compound in biolsamples, foods and medicines is an actual task for today.
  • Зображення мініатюри
    Публікація
    Langmuir–Blodgett technique versatility for electrode modification and its ECL application
    (ISBC 2018, 2018) Snizhko, D.; Zholudov, Yu.; Kukoba, A.; Xu, G.
    In the work 9,10-diphenyl anthracene and rubrene were used to decorate an amphiphilic polymer matrix polymethylmethacrylate (PMMA) lm. ITO electrodes equipped with LB lm were used in ECL experiment with tripropylamine co-reactant. Obtained ECL response satis es expectation in looking for a new technology for ECL sensor fabrication.
  • Зображення мініатюри
    Публікація
    Trans-impedance Ampli er for ECL Analyzer
    (ISBC 2018, 2018) Ghazi Bani-Khaled; Snizhko, D.; Muzyka, K.; Xu, G.
    Use of apparatus "Spark" with electrochemical station CHI 800C CH Instrument and pho- tomultiplier tube CR-105 by Hamamatsu Photonics is shown by over an electrochemilumi- nescent assay of the test solution.