Journal
CHEMICAL PHYSICS LETTERS
Volume 832, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2023.140881
Keywords
Green synthesis; Vitex negundo; Euphorbia milii; CuO nanostructures; Oxygen vacancy; Antibacterial activity
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A green and facile method was used to synthesize copper oxide nanostructures using plant extracts. The CuO nanostructures showed enhanced antibacterial activity, especially the hierarchical CuO nanoparticles/nanorods with smaller size.
A facile and green route was followed to synthesize copper oxide (CuO) nanostructures using Vitex negundo and Euphorbia milii leaf extracts. Structural, elemental, chemical, spectral and morphological features of the CuO nanostructures were determined by XRD, EDS, FTIR spectroscopy, UV-Vis spectrophotometer and FESEM, respectively. The CuO nanostructures disclosed considerably higher antibacterial activity against selected Grampositive and Gram-negative pathogenic bacteria over commercial antibiotic (Vancomycin). This enhanced antibacterial activity could be credited to the generation of more ROS associated with oxygen vacancy and size of the CuO nanostructures. Particularly, hierarchical CuO nanoparticles/nanorods prepared using V. negundo leaf extract exhibited the highest antibacterial activity due to their lower size range.
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