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<p>Acetaminophen (AAP), a widely used analgesic and antipyretic, poses serious health risks such as kidney and liver damage when consumed in excess, necessitating the development of sensitive and reliable detection methods. In this work, we reported the synthesis of boron and nitrogen co-doped reduced graphene oxide (B, N-rGO) through a simple and environmentally friendly microwave-assisted method. The as-prepared nanocomposite was explored as a multifunctional platform for electrochemical sensing, photocatalysis and biomedical applications. The B, N-rGO/GCE exhibited excellent electrochemical performance for AAP detection, delivering a low limit of detection 0.01716 µM, a wide linear range (0.05–637.65 µM), a high sensitivity (18.26 µΑ µΜ<sup>−1</sup>cm<sup>− 2</sup>), along with remarkable selectivity, stability, reproducibility and rapid response in real sample analysis. In addition to sensing, the B, N-rGO nanocomposite demonstrated superior photocatalytic activity, achieving efficient degradation of Rhodamine B. Furthermore, it showed anticancer activity against A549 human lung adenocarcinoma cells. The enhanced multifunctional performance is attributed to the synergistic effect of boron and nitrogen doping, which improves electrical conductivity, charge transfer kinetics and catalytic activity. The facile synthesis, cost-effectiveness and multifunctional properties of B, N-rGO highlight its strong potential for practical applications in electrochemical sensing, environmental monitoring and biomedical fields.</p>

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Microwave-assisted facile synthesis of B, N co-doped reduced graphene oxide for multifunctional applications

  • 期刊论文

  • 发表日期：

    2026年7月22日

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  • Prathingara Subramanian,
  • Rasu Ramachandran,
  • Vinitha Packirisamy,
  • Manoj Kumar Srinivasan

摘要

Acetaminophen (AAP), a widely used analgesic and antipyretic, poses serious health risks such as kidney and liver damage when consumed in excess, necessitating the development of sensitive and reliable detection methods. In this work, we reported the synthesis of boron and nitrogen co-doped reduced graphene oxide (B, N-rGO) through a simple and environmentally friendly microwave-assisted method. The as-prepared nanocomposite was explored as a multifunctional platform for electrochemical sensing, photocatalysis and biomedical applications. The B, N-rGO/GCE exhibited excellent electrochemical performance for AAP detection, delivering a low limit of detection 0.01716 µM, a wide linear range (0.05–637.65 µM), a high sensitivity (18.26 µΑ µΜ−1cm− 2), along with remarkable selectivity, stability, reproducibility and rapid response in real sample analysis. In addition to sensing, the B, N-rGO nanocomposite demonstrated superior photocatalytic activity, achieving efficient degradation of Rhodamine B. Furthermore, it showed anticancer activity against A549 human lung adenocarcinoma cells. The enhanced multifunctional performance is attributed to the synergistic effect of boron and nitrogen doping, which improves electrical conductivity, charge transfer kinetics and catalytic activity. The facile synthesis, cost-effectiveness and multifunctional properties of B, N-rGO highlight its strong potential for practical applications in electrochemical sensing, environmental monitoring and biomedical fields.