Synthesis and characterization of nanocomposites based on rare-earth orthoferrites and iron oxides for magnetic hyperthermia applications

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dc.creatorAndre Felipe de Oliveira
dc.creatorMarlon Luiz Hneda
dc.creatorLuis Eugenio Fernandez Outon
dc.creatorEdésia Martins Barros de Sousa
dc.creatorJose Domingos Ardisson
dc.date.accessioned2025-02-23T17:40:05Z
dc.date.accessioned2025-09-08T22:59:19Z
dc.date.available2025-02-23T17:40:05Z
dc.date.issued2019
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.identifier.doihttps://doi.org/10.1016/j.ceramint.2019.06.009
dc.identifier.issn1873-3956
dc.identifier.urihttps://hdl.handle.net/1843/80338
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofCeramics International
dc.rightsAcesso Restrito
dc.subjectÓxidos de ferro
dc.subjectNanocompósitos
dc.subject.otherOrthoferrites
dc.subject.otherIron oxides
dc.subject.otherNanocomposites
dc.subject.otherMagneto-hyperthermia
dc.titleSynthesis and characterization of nanocomposites based on rare-earth orthoferrites and iron oxides for magnetic hyperthermia applications
dc.typeArtigo de periódico
local.citation.epage17929
local.citation.issue14
local.citation.spage17920
local.citation.volume45
local.description.resumoWe fabricated and characterized tailored nanocomposites of rare-earth orthoferrites (RFeO3) (R = Nd and Y) and magnetite (Fe3O4). The orthoferrites RFeO3 (R = Nd and Y) were prepared by sol–gel synthesis and added during the co-precipitation synthesis of magnetite in three different nominal concentrations (RFeO3/Fe3O4: 90/10, 50/50, 10/90). X-ray diffraction, Mössbauer spectroscopy, vibrating-sample magnetometry, transmission electron microscopy, ultraviolet–visible spectroscopy, and infrared spectroscopy were employed for structural and magnetic characterizations. The composites exhibited mean particle size distributions in the range of 5–50 nm and a maximum specific absorption rate of 55 W g−1 after 30 min of exposure to an alternating magnetic field of 220 Oe. The results demonstrate that the nanocomposites have ideal characteristics for magneto-hyperthermia applications and thus are promising systems for the treatment of diseases such as cancer.
local.identifier.orcidhttps://orcid.org/0000-0002-7201-4650
local.identifier.orcidhttps://orcid.org/0000-0002-1659-2122
local.identifier.orcidhttps://orcid.org/0000-0003-3264-337X
local.identifier.orcidhttps://orcid.org/0000-0002-6317-4054
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0272884219314932?via%3Dihub

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