title: Synthesis of monodispersed silver nanoparticles using Hibiscus cannabinus leaf extract and its antimicrobial activity.
abstract: Synthesis of silver nanoparticles using leaf extract of Hibiscus cannabinus has been investigated. The influences of different concentration of H. cannabinus leaf extract, different metal ion concentration and different reaction time on the above cases on the synthesis of nanoparticles were evaluated. The synthesized nanoparticles were characterized using UV-vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM). The prepared silver nanoparticles were monodispersed, spherical in shape with the average particle size of 9 nm and shows surface plasmon peak at 446 nm. The study also reveals that the ascorbic acid present in H. cannabinus leaf extract has been used as reducing agent. The prepared silver nanoparticle shows good antimicrobial activity against Escherichia coli, Proteus mirabilis and Shigella flexneri.
authors.affiliation: Department of Physics, Mother Teresa Women's University, Kodaikanal 624 101, Tamil Nadu, India.
authors.forename: M R
authors.initials: MR
authors.lastname: Bindhu
authors.forename: M
authors.initials: M
authors.lastname: Umadevi
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry* / Q000494:pharmacology; D001205:Ascorbic Acid / Q000737:chemistry; D004405:Dysentery, Bacillary / Q000188:drug therapy; D004926:Escherichia coli / Q000187:drug effects; D004927:Escherichia coli Infections / Q000188:drug therapy; D031584:Hibiscus / Q000737:chemistry*; D006801:Humans; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010084:Oxidation-Reduction; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D011512:Proteus Infections / Q000188:drug therapy; D011513:Proteus mirabilis / Q000187:drug effects; D012763:Shigella flexneri / Q000187:drug effects; D012834:Silver / Q000737:chemistry* / Q000494:pharmacology; D013057:Spectrum Analysis
chemical_list: D000890:Anti-Infective Agents; D010936:Plant Extracts; D012834:Silver; D001205:Ascorbic Acid