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<p>The successful synthesis of highly pure and crystalline Argentum/Silver (Ag) nanoparticles from leaf extract was documented in the present study. These nanoparticles were applied in bacterial disinfection, antioxidant properties, and as a potential photocatalyst for degrading Rhodamine dye. The structural features of the Argentum nanoparticles (Ag) were identified through powder XRD (Diffraction of X-rays). Fourier-transform infrared (FTIR) spectroscopy revealed existence of chemical components like carboxylic and significant metal-oxygen bond stretching. Microscopic examination indicated that the Argentum nanoparticles are spherical in morphology; with average measurements is 70&#xa0;nm. The prepared Argentum nanoparticles exhibited moderate antibacterial efficacy against a variety of bacterial strains, displaying an inhibition zone ranging from 1 to 4&#xa0;mm. Furthermore, the Argentum nanoparticles served as an efficient photocatalyst in the degradation of Rhodamine (Rh) dye in UV light exposure, achieving an approximately 88% degradation efficiency within 240&#xa0;min. Therefore, the present investigation offers a fascinating route for developing effective nanoparticles through the use of more sustainable approaches to wastewater remediation.</p> Graphical abstract <p></p>

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Sustainable fabrication of argentum (Ag) nanoparticles utilizing leaf extracts of Andrographis paniculata: their characteristics and biomedical and environmental significance

  • 期刊论文

  • 发表日期：

    2025年9月9日

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  • Amutha Eswaran,
  • Rajaduraipandian Subramaniam,
  • Madhumitha Thirumalainambi,
  • Annadurai Gurusamy

摘要

The successful synthesis of highly pure and crystalline Argentum/Silver (Ag) nanoparticles from leaf extract was documented in the present study. These nanoparticles were applied in bacterial disinfection, antioxidant properties, and as a potential photocatalyst for degrading Rhodamine dye. The structural features of the Argentum nanoparticles (Ag) were identified through powder XRD (Diffraction of X-rays). Fourier-transform infrared (FTIR) spectroscopy revealed existence of chemical components like carboxylic and significant metal-oxygen bond stretching. Microscopic examination indicated that the Argentum nanoparticles are spherical in morphology; with average measurements is 70 nm. The prepared Argentum nanoparticles exhibited moderate antibacterial efficacy against a variety of bacterial strains, displaying an inhibition zone ranging from 1 to 4 mm. Furthermore, the Argentum nanoparticles served as an efficient photocatalyst in the degradation of Rhodamine (Rh) dye in UV light exposure, achieving an approximately 88% degradation efficiency within 240 min. Therefore, the present investigation offers a fascinating route for developing effective nanoparticles through the use of more sustainable approaches to wastewater remediation.

Graphical abstract