title: Synthesis of iron oxide nanoparticles with control over shape using imidazolium-based ionic liquids.
abstract: Ionic liquid (IL)-coated iron oxide nanoparticles (IONs) were synthesized by the thermal decomposition of Fe(CO)(5) in an IL/DMF solvent system in the absence of stabilizing surfactants at 90 degrees C for 1 h. The IL, [omim][BF(4)], could regulate the shape and allow the preparation of anisotropic IONs, such as barlike and wirelike nanoparticles. The barlike IONs prepared using this method showed good superparamagnetic behavior in a magnetic field and a MR contrast enhancement effect in a MR scanner.
authors.affiliation: Department of Nuclear Medicine, Cyclotron Research Center, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Jeonbuk 561-712, Korea.
authors.forename: Chang-Moon
authors.initials: CM
authors.lastname: Lee
authors.forename: Hwan-Jeong
authors.initials: HJ
authors.lastname: Jeong
authors.forename: Seok Tae
authors.initials: ST
authors.lastname: Lim
authors.forename: Myung-Hee
authors.initials: MH
authors.lastname: Sohn
authors.forename: Dong Wook
authors.initials: DW
authors.lastname: Kim