Green synthesis of copper nanoparticles using Musa acuminata aqueous extract and their antibacterial activity
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Abstract
Abstract. Muhammad A, Umar A, Birnin-Yauri AU, Sanni HA, Elinge CM, Ige AR, Ambursa MM. 2023. Green synthesis of copper nanoparticles using Musa acuminata aqueous extract and their antibacterial activity. Asian J Trop Biotechnol 20: 10-16. Green synthesis is a convenient and affordable alternative to the synthesis of copper nanoparticles. The objective of the present study was to synthesize copper nanoparticles via the green method, using Musa acuminata (banana) fruit extracts as a reducing agent with copper sulfate serving as a precursor. The antibacterial activities of the synthesized CuNps were also tested. Fruits extracts of M. acuminata were used to synthesize with CuSO4(aq) as a precursor. The synthesized nanoparticles were characterized using Uv-Vis, FTIR, XRD, SEM, and EDX techniques. The synthesis results showed that the nanoparticles were of Face-Centered Cubic (FCC) structure with high stability. The average diameter of the synthesized copper nanoparticles is 18nm. Uv-Vis, scanning electron microscope, X-ray diffraction, energy disperses X-ray, and Fourier transforms infrared spectroscopy established that the formed nanoparticles are copper nanoparticles. The antibacterial activity of the synthesized nanoparticles was also tested using pathogenic bacteria Escherichia coli and Staphylococcus aureus. The results showed that copper nanoparticles were promising antibacterial agents.