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Abstract <p>A simple synthesis using <i>Allium schoenoprasum</i> plant extract as a reducing agent has been done for the preparation of copper oxide nanoparticles (CuO NPs). Firstly, copper ions are reduced to copper atoms by plant extract, and then, they could be changed to CuO during calcination. Some techniques such as X-ray diffraction (XRD), UV–visible (UV–Vis), Fourier-transform infrared (FT-IR), scanning electron microscopy (SEM), and electrochemical methods have been applied to the evaluation of the CuO NPs formation. These results showed that CuO NPs were synthesized with uniform spherical morphology and crystallite size was about 41 nm. The electrochemical studies have been performed using a modified carbon paste electrode with CuO (CPE/CuO). This modified electrode depicted electrocatalytic activity to oxidation of glucose without enzyme. The linear dynamic range of this modified electrode and the limit of detection (LOD) were 1–120 and 0.8 μmol L<sup>–1</sup> (3δ), respectively. Simplicity, low cost, and ease of preparation are the prominent features of this sensor. Also, the stability, reproducibility, and repeatability of this modified electrode are acceptable.</p>

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Green Synthesis of Copper Oxide Nanoparticles by Allium schoenoprasum Ethanolic Extract: Application as a Catalyst for Glucose Non-Enzymatic Sensing

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • Mobina Eskandari,
  • Banafsheh Norouzi

摘要

Abstract

A simple synthesis using Allium schoenoprasum plant extract as a reducing agent has been done for the preparation of copper oxide nanoparticles (CuO NPs). Firstly, copper ions are reduced to copper atoms by plant extract, and then, they could be changed to CuO during calcination. Some techniques such as X-ray diffraction (XRD), UV–visible (UV–Vis), Fourier-transform infrared (FT-IR), scanning electron microscopy (SEM), and electrochemical methods have been applied to the evaluation of the CuO NPs formation. These results showed that CuO NPs were synthesized with uniform spherical morphology and crystallite size was about 41 nm. The electrochemical studies have been performed using a modified carbon paste electrode with CuO (CPE/CuO). This modified electrode depicted electrocatalytic activity to oxidation of glucose without enzyme. The linear dynamic range of this modified electrode and the limit of detection (LOD) were 1–120 and 0.8 μmol L–1 (3δ), respectively. Simplicity, low cost, and ease of preparation are the prominent features of this sensor. Also, the stability, reproducibility, and repeatability of this modified electrode are acceptable.