d-FeOOH : a superparamagnetic material for controlled heat release under AC magnetic field.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorChagas, Poliane-
Autor(es): dc.creatorSilva, Adilson Cândido da-
Autor(es): dc.creatorPassamani, Edson Caetano-
Autor(es): dc.creatorArdisson, José Domingos-
Autor(es): dc.creatorOliveira, Luiz Carlos Alves de-
Autor(es): dc.creatorFabris, José Domingos-
Autor(es): dc.creatorPaniago, Roberto Magalhães-
Autor(es): dc.creatorMonteiro, Douglas Santos-
Autor(es): dc.creatorPereira, Márcio César-
Data de aceite: dc.date.accessioned2025-08-21T15:20:26Z-
Data de disponibilização: dc.date.available2025-08-21T15:20:26Z-
Data de envio: dc.date.issued2017-07-04-
Data de envio: dc.date.issued2017-07-04-
Data de envio: dc.date.issued2013-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/8141-
Fonte completa do material: dc.identifierhttps://link.springer.com/article/10.1007%2Fs11051-013-1544-2-
Fonte completa do material: dc.identifierhttps://doi.org/10.1007/s11051-013-1544-2-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1011081-
Descrição: dc.descriptionExperimental evidences on its in vitro use reveal that d-FeOOH is a material that release-controlled amount of heat if placed under an AC magnetic field. d-FeOOH nanoparticles were prepared by precipitating Fe(OH)2 in alkaline solution followed by fast oxidation with H2O2. XRD and 57Fe Mo¨ssbauer spectroscopy data confirmed that d-FeOOH is indeed the only iron-bearing compound in the produced sample. TEM images evidence that the averaged particle sizes for this d-FeOOH sample is 23 nm.Magnetization measurements indicate that these d-FeOOH particles behave superparamagnetically at 300 K; its saturationmagnetization was found to be 13.2 emu g-1; the coercivity and the remnant magnetization were zero at 300 K. The specific absorption rate values at 225 kHz were 2.1, 6.2, and 34.2 W g-1, under 38, 64, and 112 mT, respectively. The release rate of heat can be directly controlled by changing the mass of d-FeOOHnanoparticles. In view of these findings, the so-preparedd-FeOOHis a real alternative tobe further tested as amaterial formedicalpractices in therapies involving magnetic hyperthermia as in clinical oncology.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectIron oxides-
Palavras-chave: dc.subjectHyperthermia-
Palavras-chave: dc.subjectMagnetic properties-
Título: dc.titled-FeOOH : a superparamagnetic material for controlled heat release under AC magnetic field.-
Aparece nas coleções:Repositório Institucional - UFOP

Não existem arquivos associados a este item.