title: Nanoparticles by decomposition of long chain iron carboxylates: from spheres to stars and cubes.
abstract: In this paper, we report the influence of reaction conditions and the chain length on the nanoparticle (NP) size and morphology for thermal decomposition of long-chain iron carboxylates such as Fe(III) oleate, palmitate, and myristate. In the majority of cases, spherical NPs are obtained; however, nonspherical morphologies were observed in some "extreme" conditions. For example, iron oxide nanostars are formed in eicosane at the Fe oleate/oleic acid ratio of 0.49 g/mL: the highest oleic acid content when NPs still form. The cubic NPs with flat facets are obtained by decomposition of iron palmitate at the lowest palmitic acid fractions, but the most monodisperse cubes are formed at the Fe palmitate/palmitic acid ratio of 1.19 g/mL. Elliptical NPs are formed from Fe myristate with the most well-defined structure. Easy transformation of these NPs from wüstite to maghemite without aggregation and loss of solubility makes them excellent candidates for biomedical applications after proper functionalization described in our preceding papers.
authors.affiliation: Department of Chemistry, Indiana University , 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States.
authors.forename: Lyudmila M
authors.initials: LM
authors.lastname: Bronstein
authors.forename: Jessie E
authors.initials: JE
authors.lastname: Atkinson
authors.forename: Andrey G
authors.initials: AG
authors.lastname: Malyutin
authors.forename: Faiz
authors.initials: F
authors.lastname: Kidwai
authors.forename: Barry D
authors.initials: BD
authors.lastname: Stein
authors.forename: David G
authors.initials: DG
authors.lastname: Morgan
authors.forename: John M
authors.initials: JM
authors.lastname: Perry
authors.forename: Jonathan A
authors.initials: JA
authors.lastname: Karty
mesh_terms: D002264:Carboxylic Acids / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D002264:Carboxylic Acids; D005290:Ferric Compounds