title: Stable single-crystalline body centered cubic Fe nanoparticles.
abstract: We report a facile synthesis of body centered cubic (bcc) Fe nanoparticles (NPs) via the thermal decomposition of iron pentacarbonyl, Fe(CO)(5), in the presence of hexadecylammonium chloride. These bcc-Fe NPs exhibit a drastically increased stability and magnetic moment (M(s) = 164 A·m(2)·kg(-1)(Fe)) even in physiological solutions, and have much enhanced magnetic imaging contrast (r(2) = 220 s(-1)·mM(-1)) and heating (SAR = 140 W·g(-1)(Fe)) effects. They may serve as robust probes for imaging and therapeutic applications.
authors.affiliation: Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States.
authors.forename: Lise-Marie
authors.initials: LM
authors.lastname: Lacroix
authors.forename: Natalie Frey
authors.initials: NF
authors.lastname: Huls
authors.forename: Don
authors.initials: D
authors.lastname: Ho
authors.forename: Xiaolian
authors.initials: X
authors.lastname: Sun
authors.forename: Kai
authors.initials: K
authors.lastname: Cheng
authors.forename: Shouheng
authors.initials: S
authors.lastname: Sun
mesh_terms: D003460:Crystallization / Q000379:methods*; D007501:Iron / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010316:Particle Size; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D007501:Iron