Production and study of nanoparticles magnetic properties by hyperfine interactions

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dc.contributor.authorNASCIMENTO, N.M.
dc.contributor.authorCORREA, E.L.
dc.contributor.authorBOSCH-SANTOS, B.
dc.contributor.authorMATOS, I.T.
dc.contributor.authorCABRERA-PASCA, G.A.
dc.contributor.authorCARBONARI, A.W.
dc.coverageInternacionalpt_BR
dc.creator.evento60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORSpt_BR
dc.date.accessioned2018-03-20T16:47:54Z
dc.date.available2018-03-20T16:47:54Z
dc.date.eventoNovember 28 - December 01, 2017pt_BR
dc.description.abstractIn the past years nanotechnology was highlighted as a quick growing field, with many applications in science and technology including information storage, drug delivery and medical images, in which gadolinium-based nanoparticles (NPs) have been studied as contrast agent for magnetic resonance image. On the other hand erbium oxide NPs present potential for many applications due to their optical, electrical and photoluminescence properties, and can be used in display monitors, carbon nanotubes for "green" chemistry and in bioimaging, and iron-based NPs have been studied for application in hyperthermia due to its superparamagnetic properties. At the Hyperfine Interactions Laboratory (LIH) NPs are synthesized by thermal decomposition and co-precipitation. Structural characterization is made using X-ray diffraction (XRD) and transmission electron microscopy (TEM) and magnetic properties are studied by magnetization, both at partner laboratories, and perturbed angular correlation (PAC) spectroscopy using 111In(111Cd) as probe nuclei at LIH. PAC spectroscopy is based on the angular correlation between nuclear radiations emitted by radioactive probe nuclei, which is a well-established method in nuclear spectroscopy. Perturbation occurs in this correlation by electromagnetic interactions external to the nucleus when it is inserted in a material, which can provide information on the electronic distribution of the neighborhood. In this work, an important material was investigated by PAC spectroscopy using 111In, which decays to 111Cd by electron capture, as probe nuclei. Results have shown that NPs produced by thermal decomposition present narrow size distribution, with average size of 5 nm. On the other hand, results related to NPs produced by co-precipitation have shown that NPs don’t have a homogeneity in size and shape distribution.pt_BR
dc.format.extent81-81pt_BR
dc.identifier.citationNASCIMENTO, N.M.; CORREA, E.L.; BOSCH-SANTOS, B.; MATOS, I.T.; CABRERA-PASCA, G.A.; CARBONARI, A.W. Production and study of nanoparticles magnetic properties by hyperfine interactions. In: 60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORS, November 28 - December 01, 2017, São Paulo, SP. <b>Abstract...</b> São Paulo, SP: Instituto de Pesquisas Energéticas e Nucleares, 2017. p. 81-81. Disponível em: http://repositorio.ipen.br/handle/123456789/28783.
dc.identifier.orcidhttps://orcid.org/0000-0002-4499-5949
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28783
dc.localSão Paulo, SPpt_BR
dc.local.eventoSão Paulo, SPpt_BR
dc.publisherInstituto de Pesquisas Energéticas e Nuclearespt_BR
dc.rightsopenAccesspt_BR
dc.titleProduction and study of nanoparticles magnetic properties by hyperfine interactionspt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorIZABELA TELES DE MATOS
ipen.autorARTUR WILSON CARBONARI
ipen.autorBRIANNA BOSCH DOS SANTOS
ipen.autorEDUARDO DE LIMA CORREA
ipen.autorNATALIA MARTINS DO NASCIMENTO
ipen.codigoautor10836
ipen.codigoautor1437
ipen.codigoautor7480
ipen.codigoautor7498
ipen.codigoautor14142
ipen.contributor.ipenauthorIZABELA TELES DE MATOS
ipen.contributor.ipenauthorARTUR WILSON CARBONARI
ipen.contributor.ipenauthorBRIANNA BOSCH DOS SANTOS
ipen.contributor.ipenauthorEDUARDO DE LIMA CORREA
ipen.contributor.ipenauthorNATALIA MARTINS DO NASCIMENTO
ipen.date.recebimento18-03pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24605pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
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relation.isAuthorOfPublication98ed65cb-4c53-456e-9954-7dbdbbcda3b9
relation.isAuthorOfPublication.latestForDiscovery98ed65cb-4c53-456e-9954-7dbdbbcda3b9
sigepi.autor.atividadeNASCIMENTO, N.M.:14142:310:Spt_BR
sigepi.autor.atividadeCORREA, E.L.:7498:330:Npt_BR
sigepi.autor.atividadeBOSCH-SANTOS, B.:7480:310:Npt_BR
sigepi.autor.atividadeMATOS, I.T.:10836:310:Npt_BR
sigepi.autor.atividadeCARBONARI, A.W.:1437:310:Npt_BR
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