title: Photosynthetic microorganism-mediated synthesis of akaganeite (beta-FeOOH) nanorods.
abstract: Common Anabaena and Calothrix cyanobacteria and Klebsormidium green algae are shown to form intracellularly akaganeite beta-FeOOH nanorods of well-controlled size and unusual morphology at room temperature. X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy X-ray energy dispersive spectrometry (SEM-EDS) analyses are used to investigate particle structure, size, and morphology. A mechanism involving iron-siderophore complex formation is proposed and compared with iron biomineralization in magnetotactic bacteria.
authors: Universite Paris Diderot (Paris 7), CNRS, UMR 7086, Interfaces, Traitements, Organisation et Dynamique des Systemes (ITODYS), F-75205 Paris Cedex 13, France. roberta.brayner@uni-paris-diderot.fr
authors: Roberta
authors: R
authors: Brayner
authors: Claude
authors: C
authors: Yéprémian
authors: Chakib
authors: C
authors: Djediat
authors: Thibaud
authors: T
authors: Coradin
authors: Fréderic
authors: F
authors: Herbst
authors: Jacques
authors: J
authors: Livage
authors: Fernand
authors: F
authors: Fiévet
authors: Alain
authors: A
authors: Couté
mesh_terms: D017033:Anabaena / Q000378:metabolism; D056890:Eukaryota / Q000378:metabolism*; D005290:Ferric Compounds / Q000737:chemistry*; D007477:Ions; D007501:Iron; D046529:Microscopy, Electron, Transmission / Q000379:methods; D008954:Models, Biological; D008956:Models, Chemical; D053758:Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry*; D010788:Photosynthesis; D013052:Spectrometry, X-Ray Emission / Q000379:methods; D013997:Time Factors; D014961:X-Ray Diffraction
chemical_list: D005290:Ferric Compounds; D007477:Ions; C473845:akaganeite; D007501:Iron