An eco-friendly synthesis of cupric oxide nanoparticles by using leaves extract of Psidiumguajava, characterisations and antibacterial activities

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Naveen Chandra Joshi , Ankita Gaur, Nikhil Pratap Singh

                               Department of Chemistry, Uttaranchal University Dehradun (India)

The synthesis of nanoparticles by using any plant materials such as leaves, stem, root or bark is highly efficient, eco-friendly and cost effective. The metal and metal oxide nanoparticles are used in different fields of science and technology due to their specific properties. The green or biological methods have been recognised as good alternatives over physical and chemical methods. In this work, we have synthesised CuO nanoparticles (CuO NPs) by using leaves extract of Psidium guajava. The green synthesised CuO NPs were characterised by using FTIR, FESEM and powder XRD methods. The biogenic CuO NPs were tested for their antibacterial effects against different bacterial species such as E. coli, S. aureus and P. vulgaris. The experimental data have been indicated that the more effectiveness of CuONPse for E. coli as compared to S. aureus and P. vulgaris.

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