Green synthesis of silver nanoparticles has been achieved using environmentally acceptable plant extract.
It is observed that Abutilon indicum leaf extract can reduce silver ions into silver nanoparticles within
15 min of reaction time. The formation and stability of the reduced silver nanoparticles in the colloidal
solution were monitored by UV–Vis spectrophotometer analysis. The mean particle diameter of silver
nanoparticles was calculated from the XRD pattern. FT-IR spectra of the leaf extract after the development
of nanoparticles are determined to allow identification of possible functional groups responsible
for the conversion of metal ions to metal nanoparticles. The AgNPs thus obtained showed highly potent
antibacterial activity toward Gram-positive (Staphyloccocus aureus and Bacillus subtilis) and Gram-negative
(Salmonella typhi and Escherichia coli) microorganisms.