title: Genetically modified luminescent bacteriaRalostonia solanacerum, Pseudomonas syringae, Pseudomonas savastanoi, and wild type bacteriumVibrio fischeriin biosynthesis of gold nanoparticles from gold chloride trihydrate.
abstract: The effect of different genetically engineered bacteria,Pseudomonas syringae, Pseudomonas savastanoi, andRalostonia solanacerumand also a natural marine bacterial species,Vibrio fischeriNRRL B-11177, is studied in producing gold nanoparticles. This is the first report about the biosynthesis of gold nanoparticles by natural and genetically engineered luminescent bacteria. These microorganisms reduced gold ions and produced fairly monodisperse nanoparticles. TEM analysis indicated that spherical nano gold particles in the different diameters and shapes were obtained at pH values of 6.64. In this biosynthesis protocol, the gold nanoparticles with desired shape and size can be prepared.
authors.affiliation: Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
authors.forename: Neda
authors.initials: N
authors.lastname: Attaran
authors.affiliation: Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Eshghi
authors.affiliation: Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Rahimizadeh
authors.affiliation: Department of Biology, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
authors.forename: Mansour
authors.initials: M
authors.lastname: Mashreghi
authors.affiliation: Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Bakavoli
keywords: biological synthesis; genetically engineered bacteria; gold ions; nano gold particles; plant pathogens; reduction reaction; surface plasmon absorption band; transmission electron microscopy