Waste Fruit Peel Mediated Synthesis of Silver Nanoparticles and Its Antibacterial Activity

The strong biological activities of nanoparticles are an essential factor because the resistance shown by bacterial species to chemical biocide is one of the major problems. In the current study, it was hypothesized that the biological waste might have biological power to reduce the silver nitrate into silver nanoparticles (AgNPs). Therefore, the biosynthesis of AgNPs using biological waste residue and their antibacterial influence were studied. The X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray techniques were used to analyze the fabricated AgNPs. In major findings, the SEM results revealed the spherical and small-sized AgNPs. The biological waste residue synthesized nanoparticles revealed that the highest inhibition zone was 25.74 ± 0.20 mm against Sphingomonas sp., while the smallest zone of inhibition was observed 9.76 ± 0.37 mm against Massilia sp. The best results were obtained against gram-positive and gram-negative bacterial isolates. Therefore, it is suggested to use the biological waste instead of other biological sources because of less toxicity, cost-effective, and easy availability.