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Master's Thesis from the year 2025 in the subject Chemistry - Macromolecular Chemistry, Polymer Chemistry, grade: A, , course: M.Sc., language: English, abstract: Nanotechnology in present era gaining value due to the capability of modulating metals into their nanoparticles due to this our work reports on the green synthesis of metal nanoparticles which has proved advantageous over chemical synthetic methods due to its low cost and environmental compatibility. The Phytochemicals present in the leaf extract act as capping and stabilizing agents for AgNPs that can rapidly reduce silver ions (Ag+ to Ag) and resulted in a color change indicating the formation of silver nanoparticles. Synthesized silver nanoparticles were characterized by UV-Vis spectrophotometer, Field Emission Scanning Electron Microscopy (FESEM), and Fourier Transform Infra-red Spectroscopy (FTIR) techniques.
The UV-Vis spectra showed a peak at 459nm. FESEM revealed that the synthesized silver nanoparticles are spherical and circular in morphology and the overall size is between 36-45nm. FTIR spectroscopy analysis showed the presence of alkaloid, polyphenols and amide groups likely to be responsible for the green synthesis of silver nanoparticles. The synthesized nanoparticles showed efficient antibacterial as well as antioxidant activity. The effect of the increase of metal salt solution was also studied. The study revealed the formation of dendrites with the increase in metal salt concentration. This study focuses on a cost-efficient, eco-friendly and safe technique for the synthesis of silver nanoparticle using leaves of medicinal plants.
