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This project aimed to synthesize and characterize copper oxide nanoparticles using plants with the highest polyphenol content and antioxidant capacity. Ecuadorian plants used included: hierba luisa (Cymbopogon citratus (DC.) Stapf), llantén (Plantago major L.), Ruda (Ruta graveolens L.), Santa María (Tanacetum parthenium L. Sch.Bip.), and Torojil (Melissa officinalis L.), along with Spanish plants: Ajenjo (Artemisia absinthium), Tomillo (Thymus vulgaris), and salvia (Salvia officinalis). Plant extracts were prepared using different ethanol concentrations (0–80%) and agitation methods (orbital and rotational), and were analyzed to determine their polyphenol content and antioxidant capacity CuO nanoparticles were synthesized via the precipitation method, using the two best extracts (one Ecuadorian and one Spanish) as anti-agglomerating and stabilizing agents. The nanoparticles were characterized using DLS, UV-Visible spectroscopy, and TEM. The polyphenol concentrations in the selected extracts were: Ruda (5.7 mg GAE/ L, 82%), Santa María (6.6 mg GAE/ L, 63%), Torojil (5.3 mg GAE/ L, 61%), Ajenjo (5.2 mg GAE/ L, 80%), Tomillo (7 mg GAE/L, 90%), and Salvia (5.8 mg GAE/ L, 72%). Ruda and Tomillo were used to synthesize copper oxide nanoparticles with a hydrodynamic diameter of 9–10 nm.

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Synthesis and Characterization of CuO Nanoparticles with Extracts Plant

  • 会议论文

  • 发表日期：

    2026年

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  • Erika Sofia Murgueitio-Herrera,
  • Mikaela Perez,
  • Andres Izquierdo,
  • Verónica García,
  • Gemma Montalvo

摘要

This project aimed to synthesize and characterize copper oxide nanoparticles using plants with the highest polyphenol content and antioxidant capacity. Ecuadorian plants used included: hierba luisa (Cymbopogon citratus (DC.) Stapf), llantén (Plantago major L.), Ruda (Ruta graveolens L.), Santa María (Tanacetum parthenium L. Sch.Bip.), and Torojil (Melissa officinalis L.), along with Spanish plants: Ajenjo (Artemisia absinthium), Tomillo (Thymus vulgaris), and salvia (Salvia officinalis). Plant extracts were prepared using different ethanol concentrations (0–80%) and agitation methods (orbital and rotational), and were analyzed to determine their polyphenol content and antioxidant capacity CuO nanoparticles were synthesized via the precipitation method, using the two best extracts (one Ecuadorian and one Spanish) as anti-agglomerating and stabilizing agents. The nanoparticles were characterized using DLS, UV-Visible spectroscopy, and TEM. The polyphenol concentrations in the selected extracts were: Ruda (5.7 mg GAE/ L, 82%), Santa María (6.6 mg GAE/ L, 63%), Torojil (5.3 mg GAE/ L, 61%), Ajenjo (5.2 mg GAE/ L, 80%), Tomillo (7 mg GAE/L, 90%), and Salvia (5.8 mg GAE/ L, 72%). Ruda and Tomillo were used to synthesize copper oxide nanoparticles with a hydrodynamic diameter of 9–10 nm.