International Journal of Current Microbiology and Applied Sciences
ISSN: 2319-7706 Volume 2 Number 6 (2013) pp. 220-227
Synthesis and characterization of silver nanoparticles from leaf extract of Parthenium hysterophorus and its anti-bacterial and antioxidant activity
M.Kalaiselvi1 , R.Subbaiya1* and Masilamani Selvam2
1Department of Biotechnology, K.S.Rangasamy College of Technology, Tiruchengode-637 215, Tamil Nadu, India 2Department of Biotechnology, Sathyabama University, Jeppiaar Nagar, Chennai-600 019, Tamil Nadu, India *Corresponding author e-mail:
Development of biologically inspired experimental processes for the synthesis of nanoparticles is evolving into an important branch of nanotechnology. The bioreduction behaviour of leaf extracts of Parthenium hysterophorus (Asteraceae) in the synthesis of silver nanoparticles was investigated employing UV/Visible spectrophotometry, particle size analyser and fourier-transform infrared spectroscopy(FT-IR).Parthenium hysterophorus is a noxious weed which is native to the American tropics. It is considered to be a cause of respiratory problems, dermatitis, mutagenicity in human and livestock. It confers many health benefits and it is used for the removal of heavy metals and dye from the environment. The antioxidant potential and antimicrobial potential of the leaf extract was tested. The antioxidant property was determined using DPPH (1,1-diphenyl-2-picrylhydrazyl) assay and hydrogen peroxidase assay. The anti-bacterial and antioxidant property were found to be better for the aqueous leaf extract and the extract containing the metal particle.
Parthenium hysterophorus; antioxidant activity; anti-bacterial activity; DPPH; silver nanoparticles; FT-IR.