Green Synthesis Of Silver Nanoparticles Using Asiatic Pennywort And Bryophyllum Leaves Extract And Their Antimicrobial Activity

Dulen Saikia, Pradip K. Gogoi, Pallabi Phukan, Nilave Bhuyan, Sangeeta Borchetia, Jibon Saikia
2015 Advanced Materials Letters  
Green synthesis of silver nanoparticles using the aqueous extract of Ferula gumosa, Ferula latisecta, Teucrium polium and Trachomitum venetum leaves and stems extract as the reducing and stabilizing agents. This synthesis shows attractive characteristics such as; the use of inexpensive and available plant extracts, non-toxicity, ecofriendly biological materials, and operational simplicity. The extracts incubated with AgNO3 solution showed gradual change in color of the extracts to yellowish
more » ... ts to yellowish brown, with intensity increasing during the period of incubation. The nanoparticles were characterized by UVvisible absorption spectroscopy, X-ray diffraction (XRD) spectroscopy, Dynamic Light Scattering (DLS) and Transmission Electron Microscope (TEM). The silver nanoparticles synthesized were generally found to be spherical in shape with variable size ranging from 5 to 30 nm, as evident by TEM. The biosynthesized silver nanoparticles (AgNPs) showed good antibacterial activity against clinical strains of two bacteria Staphylococcus aureus and Escherichia coli.
doi:10.5185/amlett.2015.5655 fatcat:fro52wcannfhra4m7s4qql5xmq