Abstract
Introduction & Objective: Recently, the utilization of herbals
for the biosynthesis of nanoparticles has been noticed in their
properties such as environmental compatibility, simplicity, and
economics. Numerous medicinal plants possess the ability to synthesize
nanoparticles that have applications in medicine, biosciences, and the
pharmaceutical industry. The primary objective of this research is to
propose an environmentally friendly approach for synthesizing silver
nanoparticles (AgNPs) for use in drug delivery, medicine, industry.
Methods: First, the polygonum aviculare L. extract was
prepared by maceration and synthesized by 2 mMAgNO3 solution using the green method. After changing
the color of the extract,
confirmation
of the formation of nanoparticles by UV-Vis spectroscopy, and
Morphological investigation by TEM, FE-SEM, XRD and FT-IR to examine
functional groups in nanoparticles and investigation of antioxidant and
antibacterial activities of nanoparticles by DPPH assay and Disk
Diffusion method.
Results: The emergence of an absorption peak between the
wavelengths of 400-450 nm on the UV-Vis spectrophotometer indicates the
synthesis of silver nanoparticles. The shape of spherical and rod
particles, their average size is about 25-70 nm . The free radical
scavenging activity was calculated as IC50 = 15.63mg/L . The synthesized silver nanoparticles had significant
antimicrobial activity.
Conclusion: polygonum aviculare L. extract can reduce
Ag+ ions to silver nanoparticles. In addition,
synthesized silver nanoparticles have good antioxidant and antimicrobial
properties.
Keywords: Silver nanoparticles, Green synthesis, Antibacterial,
Antioxidant, polygonum aviculare L.