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http://www.repositorio.ufop.br/jspui/handle/123456789/7787
Título: | Preparation of composite with silica-coated nanoparticles of iron oxide spinels for applications based on magnetically induced hyperthermia. |
Autor(es): | Andrade, Ângela Leão Fabris, José Domingos Pereira, Márcio César Domingues, Rosana Zacarias Ardisson, José Domingos |
Palavras-chave: | Biomedicine Nanotechnology Magnetic hyperthermia Ferrofluid |
Data do documento: | 2013 |
Referência: | ANDRADE, A. L. et al. Preparation of composite with silica-coated nanoparticles of iron oxide spinels for applications based on magnetically induced hyperthermia. Hyperfine Interactions, v. 218, p. 71-82, 2013. Disponível em: <https://link.springer.com/article/10.1007/s10751-012-0681-9>. Acesso em: 20 abr. 2017. |
Resumo: | It is reported a novel method to prepare magnetic core (iron oxide spinels)–shell (silica) composites containing well-dispersed magnetic nanoparticles in aqueous solution. The synthetic process consists of two steps. In a first step, iron oxide nanoparticles obtained through co-precipitation are dispersed in an aqueous solution containing tetramethylammonium hydroxide; in a second step, particles of this sample are coated with silica, through hydrolyzation of tetraethyl orthosilicate. The intrinsic atomic structure and essential properties of the core–shell system were assessed with powder X-ray diffraction, Fourier transform infrared spectrometry, Mössbauer spectroscopy and transmission electron microscopy. The heat released by this ferrofluid under an AC-generated magnetic field was evaluated by following the temperature evolution under increasingmagnetic field strengths.Results strongly indicate that this ferrofluid based on silica-coated iron oxide spinels is technologically a very promising material to be used in medical practices, in oncology. |
URI: | http://www.repositorio.ufop.br/handle/123456789/7787 |
Link para o artigo: | https://link.springer.com/article/10.1007/s10751-012-0681-9 |
DOI: | https://doi.org/10.1007/s10751-012-0681-9 |
ISSN: | 1572-9540 |
Aparece nas coleções: | DEQUI - Artigos publicados em periódicos |
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ARTIGO_PreparationCompositeSilica.pdf Restricted Access | 585,69 kB | Adobe PDF | Visualizar/Abrir |
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