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<p>A green synthesis route of solanum pubescens fruit-based NiO–SnO<sub>2</sub> nanocomposites were prepared successfully by the simple hydrothermal method for non-enzymatic glucose sensor applications. The prepared material’s structure, morphology, elemental composition, and electrochemical behaviors were examined through Powder X-Ray diffraction (PXRD), Field emission scanning electron microscopy (FESEM), Energy-dispersive X-ray spectroscopy (EDS), and Electrochemical techniques, respectively. The prepared materials having good electrocatalytic performance toward to glucose oxidation which has been analyzed by the cyclic voltammetry and amperometry. By amperometry, the NiO–SnO<sub>2</sub> nanocomposites exhibits a dual range of glucose detection for lower concentration (5–35&#xa0;µM), the sensitivity was 287.5 µA mM<sup>−1</sup>&#xa0;cm<sup>−2</sup> with detection limit of 3.2&#xa0;µM and for high concentration (2–14&#xa0;mM), the sensitivity was calculated 2618 µA mM<sup>−1</sup>&#xa0;cm<sup>−2</sup> with detection limit of 0.5&#xa0;mM. The anti-interference study was conducted with uric acid (UA), ascorbic acid (AA), citric acid (CA), sodium chloride (NaCl), and potassium chloride (KCl), along with glucose, which evident that the prepared material possesses good selectivity. It exhibits in good reproducibility and repeatability with RSD of 0.34% and 0.27%, respectively. The prepared NiO–SnO<sub>2</sub> electrode retained maximum percentage of current response even after 15&#xa0;days in the successive test. It is observed that the prepared NiO–SnO<sub>2</sub> nanomaterial has higher sensitivity in detecting trace levels of glucose, favoring non-enzymatic glucose sensor applications.</p>

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A novel synthesis of NiO–SnO2 nanocomposite with Solanum Pubescens fruit extract for non-enzymatic glucose sensing applications

  • 期刊论文

  • 发表日期：

    2025年11月2日

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  • B. Suriya,
  • S. Radha,
  • B. S. Sreeja

摘要

A green synthesis route of solanum pubescens fruit-based NiO–SnO2 nanocomposites were prepared successfully by the simple hydrothermal method for non-enzymatic glucose sensor applications. The prepared material’s structure, morphology, elemental composition, and electrochemical behaviors were examined through Powder X-Ray diffraction (PXRD), Field emission scanning electron microscopy (FESEM), Energy-dispersive X-ray spectroscopy (EDS), and Electrochemical techniques, respectively. The prepared materials having good electrocatalytic performance toward to glucose oxidation which has been analyzed by the cyclic voltammetry and amperometry. By amperometry, the NiO–SnO2 nanocomposites exhibits a dual range of glucose detection for lower concentration (5–35 µM), the sensitivity was 287.5 µA mM−1 cm−2 with detection limit of 3.2 µM and for high concentration (2–14 mM), the sensitivity was calculated 2618 µA mM−1 cm−2 with detection limit of 0.5 mM. The anti-interference study was conducted with uric acid (UA), ascorbic acid (AA), citric acid (CA), sodium chloride (NaCl), and potassium chloride (KCl), along with glucose, which evident that the prepared material possesses good selectivity. It exhibits in good reproducibility and repeatability with RSD of 0.34% and 0.27%, respectively. The prepared NiO–SnO2 electrode retained maximum percentage of current response even after 15 days in the successive test. It is observed that the prepared NiO–SnO2 nanomaterial has higher sensitivity in detecting trace levels of glucose, favoring non-enzymatic glucose sensor applications.