Abstract:
Silver nanoparticles were synthesized using Euphorbia Coninalis
stem extract which is an eco-friendly and cost effective method
compared to other synthesis protocols like chemical and physical
methods. Euphorbia Coninalis which is used traditionally for therapeutic
uses was responsible for capping and reducing silver ions
to silver nanoparticles. Silver was of a particular interest for this
process due to its evocative physical and chemical properties. The
silver nanoparticles synthesized were quantiied and characterized
using visual examination of the color changes, UV-Visible spectroscopy
and Fourier Transform Infrared spectroscopy. The antimicrobial
activity of the synthesized nanoparticles was done by agar disc
diffusion method tested against Escherichia coli (Gram-Negative)
and Staphylococcus aureus (Gram-Positive). The synthesis of silver
nanoparticles was conirmed by color change of AgNO3 to reddish
brown upon addition of the Euphorbia Coninalis stem extract. The
UV-Vis spectrum showed broad absorption band at 433nm corresponding
to that of Surface Plasmon Resonance of silver nanoparticles.
The FTIR analysis showed the presence of aromatic, aliphatic
and amines and these observations suggested the presence and
binding of organic compounds with silver nanoparticles.
