Green biosynthesis of silver nanoparticles with Eryngium caucasicum Trautv aqueous extract

Abstract

In this research, silver nanoparticles (AgNPs) are prepared by green synthesis method at ambient temperature using Eryngium caucasicum Trautv aqueous extract as reducing and natural capping agents. The AgNPs were defined using ultraviolet–visible spectroscopy (UV–Vis), Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). XRD analysis confirmed the crystalline structure of the synthesized nanoparticles. UV–Vis spectra showed a surface resonance peak at 480 nm indicating the formation of AgNPs. The AgNPs average particle size was approximately 17.5 nm. FT-IR analysis was performed to identify the biomolecules responsible for bio reduction of silver ions. Synthesized AgNPs inhibitory activity was also examined toward pathogenic bacteria such as Staphylococcus aureus and Escherichia coli. The outcomes revealed that the synthesized AgNPs demonstrated modest inhibitory activities, displaying its antibacterial rate toward pathogenic diseases.