Abstract:
Biosynthesis of nanoparticles is attractive to researchers because some of the biologically active ingredients in
the plants help in green synthesis. In this study, we have developed a single-step, cost-effective, and eco-friendly method
for the synthesis of Silver nanoparticles (AgNPs) using the aqueous plant leaves extract of Laggera crispata (Vahl) Hpper
and J.R.l Wood. AgNPs were biosynthesized using Laggera crispata (Vahl) Hpper and J.R.l Wood leaves extract as
reducing, capping, and stabilizing agent. The AgNPs began to form just after the addition of aqueous extract of Laggera
plant to the aqueous solution of Silver nitrate (AgNO3) at room temperature. The biosynthesized AgNPs were characterized
by different techniques, such as Fourier Transform Infrared (FTIR) spectroscopy, X-ray Diffraction (XRD), and UV Visible Spectroscopy. The absorption spectra obtained from UV-Visible spectroscopy showed a sharp Surface Plasmon
Resonance (SPR) peak at 451 nm which confirmed the formation of AgNPs. The average particle size of AgNPs was 53
nm as determined by X-ray Diffraction measurement. The FTIR study showed characteristic peaks corresponding to the
functional groups that act as capping and stabilizing agent to AgNPs.
