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<p>Developing novel sensitive materials is essential for building efficient glucose sensors, which are crucial for both diabetes diagnosis and prevention. This paper presents a new nonenzymatic glucose sensor based on a palladium-functionalized nickel foam (Pd@Fun-NiF) electrode manufactured using a binder-free, simple, one-step electrodeposition process. Morphology, elemental composition, crystal, and molecular structure of the proposed Pd@Fun-NiF nanostructured electrode were investigated by SEM, EDS, XRD, and FTIR techniques. The electrochemical behavior of Pd@Fun-NiF nanostructures during glucose sensing was examined using cyclic voltammetry and amperometry (i-t). The Pd nanosheet-modified Fun-NiF electrode showed remarkable electrocatalytic activity in alkaline media because of the efficient mass transfer within the nanosheet structure and the complementary interactions between Pd and the functionalized substrate. The fabricated sensor demonstrates high sensitivity (340 μA·mM<sup>−1</sup>·cm<sup>−2</sup>), quick response time (0.3&#xa0;s), good linear range (0.5&#xa0;µM–2&#xa0;mM), low limit of detection (0.5&#xa0;µM), and excellent selectivity. Furthermore, the sensor monitors glucose in human blood samples, proving its practical application. This Pd@Fun-NiF nanostructure design creates novel materials for point-of-care diagnostics and enhances the functionality of nonenzymatic glucose sensors.</p>

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One-step electrodeposition of palladium-functionalized nickel foam for nonenzymatic glucose-sensing application

  • 期刊论文

  • 发表日期：

    2026年3月10日

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  • Zahida Nazir,
  • Ahtisham Abdul Wahid,
  • Muhammad Usman,
  • Yasir A. Haleem,
  • Kabeer Raza,
  • Muhammad Asif Hussain,
  • Munawar Hussain,
  • Abdul Ghafar Wattoo,
  • Lujun Pan,
  • Fatima Maqsood

摘要

Developing novel sensitive materials is essential for building efficient glucose sensors, which are crucial for both diabetes diagnosis and prevention. This paper presents a new nonenzymatic glucose sensor based on a palladium-functionalized nickel foam (Pd@Fun-NiF) electrode manufactured using a binder-free, simple, one-step electrodeposition process. Morphology, elemental composition, crystal, and molecular structure of the proposed Pd@Fun-NiF nanostructured electrode were investigated by SEM, EDS, XRD, and FTIR techniques. The electrochemical behavior of Pd@Fun-NiF nanostructures during glucose sensing was examined using cyclic voltammetry and amperometry (i-t). The Pd nanosheet-modified Fun-NiF electrode showed remarkable electrocatalytic activity in alkaline media because of the efficient mass transfer within the nanosheet structure and the complementary interactions between Pd and the functionalized substrate. The fabricated sensor demonstrates high sensitivity (340 μA·mM−1·cm−2), quick response time (0.3 s), good linear range (0.5 µM–2 mM), low limit of detection (0.5 µM), and excellent selectivity. Furthermore, the sensor monitors glucose in human blood samples, proving its practical application. This Pd@Fun-NiF nanostructure design creates novel materials for point-of-care diagnostics and enhances the functionality of nonenzymatic glucose sensors.