Nanostructured Magnetic Systems
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Size and shape-controlled nanomaterials based on modified polyol and thermal decomposition approaches. A brief review.
Abstract: Since its inception in 2007, the Colloidal Materials Group, one of the research groups in nanotechnology of the Institute of Chemistry of São Carlos (IQSC) at University of São Paulo (USP) carries out studies related to the development of syntheses methods of nanoparticles and multifunctional nanostructured systems. Our works search new synthesis
An. Acad. Bras. Ciênc.. Publicado em: 28/11/2019
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2. Performance eletrocatalítica frente a nitrito de um filme híbrido de fosfomolibdato e sílica organomodificada
RESUMO Materiais híbridos orgânico-inorgânicos nanoestruturados são produzidos com a finalidade de desenvolver e/ou aprimorar uma propriedade de interesse. Uma forma de obtenção de materiais híbridos é através da imobilização de um componente inorgânico em uma rede de sílica organicamente modificada (ormosil). Neste trabalho, um polioxometalato
Matéria (Rio J.). Publicado em: 25/11/2019
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3. Crystallization in Rapidly Quenched Fe-B-Si System with Additions of C and Cu
Glass formability and phase transformations in rapidly quenched ferromagnetic nano-structured (Fe85B15-xSix)98-yC2Cuy (where x=0; 5 and y=0; 1) systems were investigated. The consecutive crystallization stages of bcc-Fe and borides were determined by resistometry, differential scanning calorimetry and by thermogravimetry, where the values of important transf
Mat. Res.. Publicado em: 17/11/2015
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4. Fases magnéticas de sistemas nanoestruturados de terras-raras
There is presently a worldwide interest in artificial magnetic systems which guide research activities in universities and companies. Thin films and multilayers have a central role, revealing new magnetic phases which often lead to breakthroughs and new technology standards, never thought otherwise. Surface and confinement effects cause large impact in the m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/02/2011
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5. Nanocompósitos magnéticos: potencialidades de aplicações em Biomedicina
The synthesis of magnetic materials such as nanostructured iron oxide has been intensively researched due to their broad applications in biomedicine. As these nanoparticles have high specific surface area, they are very reactive and can aggregate easily, and biodegrade when exposed to biological systems. Mesoporous silica is often employed as support matrix
Química Nova. Publicado em: 2011
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6. Multicamadas Ferromagnéticas Nanométricas Periódicas e Quasiperiódicas
We present a study of nanostructured magnetic multilayer systems in order to syn- thesize and analyze the properties of periodic and quasiperiodic structures. This work evolved from the deployment and improvement of the sputtering technique in our labora- tories, through development of a methodology to synthesize single crystal ultrathin Fe (100) films, to t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/10/2010
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7. Histerese t_ermica de sistemas magn_eticos nanoestruturados / Histerese t_ermica de sistemas magn_eticos nanoestruturados
Relatamos um estudo de histerese termica em sistemas magneticos nanoestruturados. A histerese termica se origina da exist^encia de estados meta-estaveis em intervalos de temperatura que s~ao controlaveis pelas dimens~oes fsicas e composic~ao do sistema magnetico e pelo valor do campo magnetico externo. Dois sistemas s~ao investigados. O primeiro sistema cons
Publicado em: 2010
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8. Avaliação da biocompatibilidade de magnetolipossomas à base de nanopartículas de maghemita
Nanobiotechnology represents an emerging and promising research field. Nanostructured materials, such as magnetic fluids and magnetoliposomes (MLs), have been proposed for drug-delivery systems and thermal-based cancer therapy amongst other several applications in biomedicine. In particular, MLs are physiologically stable structures, consisting of magnetic n
Publicado em: 2008
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9. Avaliação in vitro da citotoxicidade e genotoxicidade dos polímeros de albumina magnéticos
Nanotechnology is marked by an increasing interest in the biomedical field. Nanostructured materials, such as magnetic fluids, magnetoliposomes, and magnetic polymers, composed of magnetic nanoparticles (NPMs) have been proposed for several applications: drug delivery systems, cell sorter, in vitro and in vivo diagnosis, and also for the treatment of several
Publicado em: 2007