Green synthesis of silver nanoparticles (AgNPs) was performed using extracts from Ornithogalum narbonense L. (ONL) as a cost-effective and eco-friendly approach. A surface plasmon resonance peak
was observed at 440 nm after 12 h. The intense reddish-brown coloration was observed higher than
1.5 mM AgNO3 concentrations. Bioactive compounds were found responsible for the reduction, stabilization, and capping of Agþ to AgNPs. X-ray powder diffraction analysis confirmed the face-centered
cubic silver crystalline structure. The average spherical-shaped individual particle size was around
8.46 nm, while hydrodynamic size ranged between 7–13 nm and 36–131 nm. The AgNPs have good
stability (f ¼ –31.15 mV). Energy-dispersive X-ray spectroscopy analysis proved the presence of elemental Ag (6.76%). The antibacterial activity with the zone of inhibition is as follows: P. aeruginosa > E.
coli > S.aureus > B. cereus (10.35 ± 0.12 mm > 9.40 ± 0.14 mm > 8.20 ± 0.10 mm > 7.0 ± 0.24 mm).
The AgNPs did not show antifungal properties against C. albicans.