Synthesis and characterization of Fe3O4-HfO2 nanoparticles by magnetization and hyperfine interactions measurements

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dc.contributor.authorMATOS, IZABELA T.pt_BR
dc.contributor.authorSALES, TATIANE S.pt_BR
dc.contributor.authorCABRERA-PASCA, GABRIELpt_BR
dc.contributor.authorBURIMOVA, ANASTASIApt_BR
dc.contributor.authorSAXENA, RAJENDRA N.pt_BR
dc.contributor.authorPEREIRA, LUCIANO F.pt_BR
dc.contributor.authorOTUBO, LARISSApt_BR
dc.contributor.authorCARBONARI, ARTUR W.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS, 65thpt_BR
dc.date.accessioned2022-05-09T14:14:34Z
dc.date.available2022-05-09T14:14:34Z
dc.date.eventoNovember 2-6, 2020pt_BR
dc.description.abstractNanoparticles (NPs) that combine biocompatibility and enhanced physical characteristics for biomedical applications are currently an area of intense scientific research. Hafnium oxide NPs is an innovative approach in the anticancer treatment by radiotherapy due to their low toxicity and enhancement of local dose in the tumor reducing the total radiation dose for the patient [1]. The combination of this amazing property with the excellent magnetic hyperthermia performance of Fe3O4 NPs can produce a promising nanomaterial for cancer therapy. In the present work, we have synthesized NPs samples of Fe3O4 doped with 10%Hf and HfO2 doped with 10% Fe by chemical procedures. The samples had their morphological, structural, and magnetic properties characterized by some results being displayed in Fig. 1. The crystal structure of the samples was characterized by X-ray Diffraction (XRD), whose results present a single phase. Transmission Electron Microscopy (TEM) images show spherical and hexagonal NPs with an average size of 12 nm as displayed in Fig. 2. The magnetic property was investigated by magnetization measurement. The results from the temperature dependence of ZFC-FC magnetization show a large peak in the ZFC curve corresponding to a broad distribution of blocking temperatures as shown in Fig. 1(b). Fortunately, when irradiated with neutrons in a research reactor, the nuclear reaction 180Hf(n,γ)181Hf yields the probe nucleus 181Hf(181Ta) used by the perturbed angular correlations (PAC) technique to measure hyperfine interactions. Both samples show electric quadrupole interaction characteristics of the HfO2 phase indicating that the Fe replaces Hf in HfO2 NPs, but rather than substituting Fe, Hf form HfO2 NPs diluted in Fe3O4 NPs. Moreover, a pure time-dependent magnetic dipole interaction below 300 K was observed for Fe3O4 NPs mixed with 10% of HfO2.pt_BR
dc.event.siglaMMMpt_BR
dc.identifier.citationMATOS, IZABELA T.; SALES, TATIANE S.; CABRERA-PASCA, GABRIEL; BURIMOVA, ANASTASIA; SAXENA, RAJENDRA N.; PEREIRA, LUCIANO F.; OTUBO, LARISSA; CARBONARI, ARTUR W. Synthesis and characterization of Fe3O4-HfO2 nanoparticles by magnetization and hyperfine interactions measurements. In: ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS, 65th, November 2-6, 2020, Online. <b>Abstract...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/33055.
dc.identifier.orcid0000-0002-4499-5949pt_BR
dc.identifier.orcid0000-0003-3023-1718pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6078-229X
dc.identifier.orcidhttps://orcid.org/0000-0002-4499-5949
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/33055
dc.local.eventoOnlinept_BR
dc.rightsopenAccesspt_BR
dc.titleSynthesis and characterization of Fe3O4-HfO2 nanoparticles by magnetization and hyperfine interactions measurementspt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorIZABELA TELES DE MATOS
ipen.autorANASTASIA BURIMOVA
ipen.autorLARISSA OTUBO
ipen.autorARTUR WILSON CARBONARI
ipen.autorLUCIANO FABRICIO DIAS PEREIRA
ipen.autorRAJENDRA NARAIN SAXENA
ipen.autorTATIANE DA SILVA NASCIMENTO
ipen.codigoautor10836
ipen.codigoautor14454
ipen.codigoautor9697
ipen.codigoautor1437
ipen.codigoautor3346
ipen.codigoautor1329
ipen.codigoautor9322
ipen.contributor.ipenauthorIZABELA TELES DE MATOS
ipen.contributor.ipenauthorANASTASIA BURIMOVA
ipen.contributor.ipenauthorLARISSA OTUBO
ipen.contributor.ipenauthorARTUR WILSON CARBONARI
ipen.contributor.ipenauthorLUCIANO FABRICIO DIAS PEREIRA
ipen.contributor.ipenauthorRAJENDRA NARAIN SAXENA
ipen.contributor.ipenauthorTATIANE DA SILVA NASCIMENTO
ipen.date.recebimento22-05
ipen.event.datapadronizada2020pt_BR
ipen.identifier.ipendoc28752pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
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relation.isAuthorOfPublication4f5e0f7f-3b35-4755-9aa2-7647babb9530
relation.isAuthorOfPublicationd4213c42-72f0-4acc-956e-bdb70003cdee
relation.isAuthorOfPublication8f236231-e73c-4182-a596-d83e49cd0404
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relation.isAuthorOfPublication24b79047-b1bf-4409-a205-0d39870c9cfd
relation.isAuthorOfPublication.latestForDiscovery4acd80c8-445a-4637-9695-cad4cd2045bf
sigepi.autor.atividadeCARBONARI, ARTUR W.:1437:310:Npt_BR
sigepi.autor.atividadeOTUBO, LARISSA:9697:711:Npt_BR
sigepi.autor.atividadePEREIRA, LUCIANO F.:3346:310:Npt_BR
sigepi.autor.atividadeSAXENA, RAJENDRA N.:1329:310:Npt_BR
sigepi.autor.atividadeBURIMOVA, ANASTASIA:14454:310:Npt_BR
sigepi.autor.atividadeSALES, TATIANE S.:9322:310:Npt_BR
sigepi.autor.atividadeMATOS, IZABELA T.:10836:-1:Spt_BR
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