Iranian Nanotechnology Society International Journal of Nanoscience and Nanotechnology 1735-7004 17 2 2021 05 01 Role of Green Synthesized CuO ‎Nanoparticles of Trigonella Foenum-‎Graecum L. Leaves and their Impact on ‎Structural, Optical and Antimicrobial ‎Activity ‎ 109 121 244184 EN S. P. Lakshmanan PG & Research Department of Physics, Sadakathullah Appa College, Tirunelveli, India S. T. Jostar PG & Research Department of Physics, Sadakathullah Appa College, Tirunelveli, India 0000-0003-0330-4969 G. J. Arputhavalli Department of Physics, Coimbatore Institute of Technology, Coimbatore, India 0000-0002-4919-004X S. Jebasingh Department of Mathematics, Karunya Institute of Technology and Sciences, Coimbatore, ‎India C. M. R. Josephine Department of Life Sciences, Kristu Jayanti College (Autonomous), Bengaluru, India Journal Article 2020 12 22 <em>   The present research work focused on the synthesis, characterization and testing of antimicrobial activity of CuO nanoparticles prepared by green synthesis method using</em><em>Trigonella foenum-graecum L. leaf extract. The XRD pattern indicated the presence of cubic structure of nanocrystalline CuO with crystallite size of 47 nm. The optical band gap was calculated using Tauc’s plot and found to be 3.6 eV. SEM images revealed that the particles had cluster structures with a combination of different shapes. EDAX analysis confirmed the presence of copper and oxide by indicating predominant peak which was the highest percentage present in the spectrum. The synthesized nanoparticles showed significant antibacterial and antifungal activity against the human pathogens Staphylococcus aureus and Penicillium sp. So this nanoparticle can be considered as an alternate approach for reducing the adhesion of</em><em>micro-organisms. </em> https://www.ijnnonline.net/article_244184_c3147b890a3c7d278a4921d61f1a0d1e.pdf