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<p>To combat antibiotic resistance and ensure food quality, the detection of tetracycline (TC) is essential. This study describes the fabrication of a TC sensor using an electrochemical approach based on a 3D (NiS and SiO<sub>2</sub>) composite combined with 2D graphene. Furthermore, the synthesized materials were coated onto a nickel foam electrode, which exhibits excellent conductivity, large surface area, and mechanical strength, thereby enhancing electrochemical performance. Additionally, this non enzymatic sensor is cost effective and capable of rapid and low concentration (0.05&#xa0;µM) detection of tetracycline (TC). The semiconductor and porous structure based active materials demonstrate strong affinity with the functional groups of the target material. This synthesized nanocomposite material was analyzed using various experimental techniques including X-ray diffraction (XRD), Raman spectroscopy, XPS, DRS, Photocurrent, SEM, TEM, Cyclic voltammetry (CV), and Tafel plots. We have developed an electrochemical sensor with a minimum detection Limit of 0.0761&#xa0;μM, which offers excellent reproducibility, stability, reliability, and remarkable prospects for application in detecting TC in phosphate buffer saline (PBS).</p>

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Tailoring of an electrochemical sensor using a 2D/3D ternary nanocomposite for selective detection of tetracycline

  • 期刊论文

  • 发表日期：

    2025年9月11日

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  • Latiful Kabir,
  • Young Jun Joo,
  • Kwang Youn Cho,
  • Won-Chun Oh

摘要

To combat antibiotic resistance and ensure food quality, the detection of tetracycline (TC) is essential. This study describes the fabrication of a TC sensor using an electrochemical approach based on a 3D (NiS and SiO2) composite combined with 2D graphene. Furthermore, the synthesized materials were coated onto a nickel foam electrode, which exhibits excellent conductivity, large surface area, and mechanical strength, thereby enhancing electrochemical performance. Additionally, this non enzymatic sensor is cost effective and capable of rapid and low concentration (0.05 µM) detection of tetracycline (TC). The semiconductor and porous structure based active materials demonstrate strong affinity with the functional groups of the target material. This synthesized nanocomposite material was analyzed using various experimental techniques including X-ray diffraction (XRD), Raman spectroscopy, XPS, DRS, Photocurrent, SEM, TEM, Cyclic voltammetry (CV), and Tafel plots. We have developed an electrochemical sensor with a minimum detection Limit of 0.0761 μM, which offers excellent reproducibility, stability, reliability, and remarkable prospects for application in detecting TC in phosphate buffer saline (PBS).