title: Ferrimagnetic nanocrystal assemblies as versatile magnetic particle hyperthermia mediators.
abstract: Colloidal nanocrystal assemblies (nanoclusters), consisting of 13 nm iron oxide nanocrystals, were synthesized in various sizes (45-98 nm), and were investigated as heating mediators for magnetic particle hyperthermia. The colloidal nanocrystal clusters show enhanced heating efficiency in comparison with their constituent primary iron oxide nanocrystals due to collective magnetic features. The fine tuning of intra-cluster magnetic interactions results to the domination of the hysteresis losses mechanism over the relaxation loss heating contributions and eventually to a versatile magnetic particle hyperthermia mediator.
authors.affiliation: Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece. Electronic address: dsakel@physics.auth.gr.
authors.forename: D
authors.initials: D
authors.lastname: Sakellari
authors.affiliation: Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Institute of Electronic Structure & Laser, Foundation for Research & Technology, Hellas, Vassilika Vouton, 71110 Heraklion, Greece.
authors.forename: K
authors.initials: K
authors.lastname: Brintakis
authors.affiliation: Institute of Electronic Structure & Laser, Foundation for Research & Technology, Hellas, Vassilika Vouton, 71110 Heraklion, Greece.
authors.forename: A
authors.initials: A
authors.lastname: Kostopoulou
authors.affiliation: Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
authors.forename: E
authors.initials: E
authors.lastname: Myrovali
authors.affiliation: Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
authors.forename: K
authors.initials: K
authors.lastname: Simeonidis
authors.affiliation: Institute of Electronic Structure & Laser, Foundation for Research & Technology, Hellas, Vassilika Vouton, 71110 Heraklion, Greece.
authors.forename: A
authors.initials: A
authors.lastname: Lappas
authors.affiliation: Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
authors.forename: M
authors.initials: M
authors.lastname: Angelakeris
mesh_terms: D005290:Ferric Compounds / Q000737:chemistry*; D006979:Hyperthermia, Induced; D060526:Magnetic Fields; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D013818:Thermogravimetry
chemical_list: D005290:Ferric Compounds; D058185:Magnetite Nanoparticles; C000499:ferric oxide
keywords: Magnetic hyperthermia; Magnetic nanoparticles; Multi-core nanoclusters