In this work, we have investigated on Lantana camara mediated silver nanoparticles (AgNPs) with different leaf
extract (LE) quantity for the evaluation of efficient bactericidal activity. The AgNPs were prepared by simple, capable,
eco-friendly and biosynthesismethod using L. camara LE. Thismethod allowed the synthesis of crystalline
nanoparticles, which was confirmed by X-ray diffraction (XRD) and selected area electron diffraction (SAED)
patterns. The X-ray photoelectron spectroscopy (XPS) analysis confirmed the formation of metallic silver and
elucidates the surface state composition of AgNPs. UV–vis spectra of AgNPs and visual perception of brownish
yellow color from colorless reaction mixture confirmed the AgNP formation. Involvement of functional groups
of L. camara leaf extract in the reduction and capping process of nanoparticles was well displayed in Fourier
transform infrared spectroscopy (FTIR). Decrement of particle size with an increment of leaf extract volume
was evident in AFM, TEM images and also through a blue shift in the UV–vis spectra. The rate of formation and
size of AgNPs were dependent on LE quantity. Meanwhile, these AgNPs exhibited effective antibacterial activity
with the decrement of particle size against all tested bacterial cultures.