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<p>A polyfluorinated azobenzene-functionalized carbon nanotubes nanocomposite was synthesised through electrochemical reduction. The composites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, energy dispersive spectroscopy and Fourier transform infrared spectroscopy. Electrochemical tests showed that this nanocomposite on glassy carbon electrode can enhance the electron transfer capability, which enabled the modified electrode to detect dopamine and uric acid in ranges of 0.58–15.51 µM and 0.75–57.08 µM with low detection limits of 0.31 µM and 0.52 µM. Additionally, good interference resistance and stability of this nanocomposite made it highly promising for use in electrochemical sensing applications.</p> Graphical abstract <p></p>

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Fabrication of polyfluorinated azobenzene-functionalized carbon nanotubes for detecting dopamine and uric acid

  • 期刊论文

  • 发表日期：

    2025年12月29日

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  • Li Dong,
  • Xia Wu,
  • Dingcheng Zhang,
  • Jing Zhu,
  • Lin Liu,
  • Chao Liu,
  • Xiaobo Zhang,
  • Zhiwei Tong

摘要

A polyfluorinated azobenzene-functionalized carbon nanotubes nanocomposite was synthesised through electrochemical reduction. The composites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, energy dispersive spectroscopy and Fourier transform infrared spectroscopy. Electrochemical tests showed that this nanocomposite on glassy carbon electrode can enhance the electron transfer capability, which enabled the modified electrode to detect dopamine and uric acid in ranges of 0.58–15.51 µM and 0.75–57.08 µM with low detection limits of 0.31 µM and 0.52 µM. Additionally, good interference resistance and stability of this nanocomposite made it highly promising for use in electrochemical sensing applications.

Graphical abstract