%0 Journal Article %T RAPID AND GREEN SYNTHESIS OF SILVER NANOPARTICLES USING THE LEAF EXTRACTS OF PARTHENIUM HYSTEROPHORUS: A NOVEL BIOLOGICAL APPROACH %A D.Ashok kumar %J International Research Journal of Pharmacy %D 2012 %I International Research Journal of Pharmacy %X The current research evaluated the effect of extracts of the Parthenium Hysterophorus plant on synthesis of antimicrobial silver nanoparticles using silver nitrate as a substrate. The UV-Visible analysis against the reduction reaction mixture time confirms the reduction of silver nanoparticles indicating that the formation nanoparticles and the aggregation of nanoparticles take place shortly time. The synthesized nano crystals were characterized using Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The silver nanoparticles synthesis was confirmed with X-ray diffraction spectrum which exhibited intense peaks corresponding to the (111), (200), (220) (311), and sets of lattice planes of silver. The FTIR spectrum analysis evaluated the presence of different functional groups in capping the silver nanoparticles. Water soluble organics present in the leaf are responsible for the reduction of silver ions. This green synthesis nanoparticles method provides faster synthesis comparable to chemical methods and can be used in areas such as cosmetics, foods, medicals and biotechnology. DP leaf demonstrated strong potential for synthesis of silver nanoparticles by rapid reduction of silver ions. Biological methods are a good competent for the chemical procedures, which are environment friendly and convenient. %K Antimicrobial activity %K medicinal plants %K silver %K nanoparticles %K photosynthesis %K nanotechnology. %U http://www.irjponline.com/admin/php/uploads/866_pdf.pdf