Green synthesis of silver nanoparticles from Astragalus logopodioides L. leaves

Abstract

Natural products have gained great interest due to their broad spectrum of biological activities and bioactive compounds. In this study, silver nanoparticles (AgNPs) were synthesized using Astragalus logopodioides L. by green approach. The structure of AgNPs was elucidated by spectroscopic techniques. UV-Vis spectrum presented the maximum absorption of AgNPs as 419 nm. The crystal structure of AgNPs was assigned as face centered cubic by X-ray diffraction (XRD) pattern. Scanning electron microscope (SEM) established morphology of AgNPs with an average size of 36.4 nm. A. logopodioides included the bioactive compounds, So, AgNPs capped by these compounds could be valuable substances for food and pharmaceutical applications.

Synthesis and characterization of silver nanoparticles using Sphaerophysa kotschyana fruit and the assessment of their antioxidant activity

“…There is an agreement in the reported study in which s-AgNPs synthesized from some aromatic and medicinal plants displayed considerable antioxidant activity. [26][27][28][29][30] Moreover, s-AgNPs were synthesized using Atrocarpus altilis leaf extract, and the nano-particles and extract revealed antioxidant and antimicrobial activity. 31 In another study, Thymus kotschyanus extract was used for the synthesis of s-AgNPs, and the extract and nanoparticles were reported to display antioxidant, antibacterial, and cytotoxic effects.…”