چکیده انگلیسی:
The purpose of this study was to expand a trouble free biological method for the synthesis of silver nanoparticles (AgNPs) using the leaves extract of Rosa ChinensisL. to act as reducing and stabilizing agent. Water soluble phytochemicals played a vital role for the reduction silver ions into silver nanoparticles. The leaves extract was exposed to silver ions and the resultant biosynthesized AgNPs characterized by X-ray diffraction (XRD) spectrum showed crystalline structure while morphological shape, average size and the crystalline nature of the nanoparticles were determined by field emission scanning electron microscopy (FESEM), transmission electron microscopic with selected area electron diffraction (TEM-SAED). The elemental analysis displayed strong signal at 3 keV that agrees to silver ions and confirms the presence of metallic silver. FTIR analysis exhibits the possible reducing bio-molecules within the leaf extract. Moreover, AgNPs nanoparticles evinced excellent antibacterial activity against Staphylococcus aureus and Streptococcus pyogenus bacterial pathogens. The studies describing the synthesis of AgNPs nanoparticles by efficient and green method followed by the investigation of antibacterial activities may be opened new horizons to scientists and researchers for the medicinal purposes.
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