• Swati Goyal
• Neeta Gupta

Green chemistry synthesis of nanoparticles has become new area of interest in nanotechnology. In the present study an environmental friendly silver nanoparticles (AgNPs) were prepared using Catharanthus roseus aqueous extract. The plant’s aqueous extract was mixed with silver nitrate solution for the production of AgNPs. The crystalline phase and morphology of AgNPs were examined by using UV-Vis spectroscopy, Fourier transform infrared (FTIR) spectra, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Additionally, the synthesized AgNPs were tested against Escherichia coli and Staphylococcus aureus to find out the antimicrobial properties of synthesized nanomaterials and it was concluded that the obtained AgNPs have a good antimicrobial activity and can be used for biological applications. This green synthesis provides an eco-friendly, economic and clean green synthesis method for developing the AgNPs

Green synthesis, Silver Nanoparticles, Catharanthus roseus, Characterization, Antimicrobial activity

"“Green” Nanotechnologies: Synthesis of Silver Nanoparticles Using Catharanthus roseus Leaf Aqueous Extract & Its Antimicrobial Activity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.122-133, May-2019, Available :http://www.jetir.org/papers/JETIR1905R18.pdf

"“Green” Nanotechnologies: Synthesis of Silver Nanoparticles Using Catharanthus roseus Leaf Aqueous Extract & Its Antimicrobial Activity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp122-133, May-2019, Available at : http://www.jetir.org/papers/JETIR1905R18.pdf