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dc.creatorTadić, Marin
dc.creatorKralj, Slavko
dc.creatorLalatonne, Yoann
dc.creatorMotte, Laurence
dc.date.accessioned2019-02-19T08:53:36Z
dc.date.available2019-02-19T08:53:36Z
dc.date.issued2019
dc.identifier.issn0169-4332 (print)
dc.identifier.urihttps://linkinghub.elsevier.com/retrieve/pii/S0169433219301138
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/8033
dc.description.abstractInvestigation and synthesis of anisotropic magnetic nanostructures, such as wires, rods, fibers, tubes and chains, is an important field of research due to the beneficial properties and great potential for practical applications ranging from magnetic data storage to biomedicine. Silica coated iron oxide nanochains of length up to 1 μm and diameter ∼80–100 nm have been synthesized by the simultaneous magnetic assembly of superparamagnetic iron oxide nanoparticle clusters (SNCs) as links (viz. maghemite, γ-Fe2O3) and the fixation of the assembled SNCs with an additional layer of deposited silica. We reveal that is possible to achieve either superparamagnetic or ferromagnetic behavior with the nanochains depending only on their physical orientation. The superparamagnetic behavior is observed for random orientation of nanochains whereas ferromagnetic properties (HC ≈ 100 Oe) come to the fore when the orientation is mainly parallel. These peculiar magnetic properties can be related to: (1) the specific size, which is ∼9 nm, of primary building blocks of the nanochains, i.e. of maghemite nanoparticles; (2) to the anisotropic chain-like shape of the particles; and (3) to inter-particle interactions. Large pore volume and pore size of silica shell as well as good colloidal stability and magnetic responsiveness of such nanochains enable applications in biomedicine. © 2019 Elsevier B.V.
dc.language.isoen
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45015/RS//
dc.relationSlovenian Research Agency (ARRS) (No. P2-0089)
dc.relationSlovenian Research Agency (ARRS) “Nanotheranostics based on magneto-responsive materials ” (No. J1-7302)
dc.relationSlovenian Research Agency (ARRS) “Tunnelling nanotubes for innovative urinary bladder cancer treatments” (No. J3-7494)
dc.rightsrestrictedAccess
dc.sourceApplied Surface Science
dc.subjectPorous silica shellen
dc.subjectSurface effectsen
dc.subjectSuperparamagnetism (SPION)en
dc.subjectFerromagnetismen
dc.subjectMagnetic anisotropyen
dc.subjectSynthesisen
dc.titleIron oxide nanochains coated with silica: Synthesis, surface effects and magnetic propertiesen
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractМотте, Лауренце; Тадић, Марин; Краљ, Славко; Лалатонне, Yоанн;
dc.rights.holder© 2019 Elsevier B.V.
dc.citation.volume476
dc.citation.spage641
dc.citation.epage646
dc.identifier.wos000459458600076
dc.identifier.doi10.1016/j.apsusc.2019.01.098
dc.type.versionpublishedVersion
dc.identifier.scopus2-s2.0-85060330849


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