Green Synthesis of Silver Nanoparticles Using Ginkgo biloba and Their Bactericidal and Larvicidal Effects
The synthesis of metallic nanoparticles using plant extracts has attracted much attention. In this study, silver nanoparticles (AgNPs) were synthesized using the Ginkgo biloba plant-leaf extract and their antibacterial and larvicidal activities were investigated. AgNPs were characterized using UV-visible, X-ray diffraction (XRD), Fourier transform infrared (FTIR), energy-dispersive X-ray (EDX) spectroscopy and field emission scanning electron microscope (FESEM) analysis. The UV-visible spectral analysis showed a surface plasmon resonance (SPR) peak at 430 nm, the FESEM analysis revealed size of AgNPs between 25–45 nm and the XRD data confirmed the formation of the AgNPs using G. biloba-mediated green synthesis. AgNPs showed the highest antibacterial activities against Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtills, Enterobacter aerogens, Salmonella paratyphi and Escherichia coli. Also, the AgNPs exerted a significant larvicidal effect on the Culex mosquito larvae.