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	Provedor de dados Rev. Bras. Ciênc. Solo (2) BABT (1) Autor Barros,Yara Jurema (1) Collier,Leonardo Santos (1) Kummer,Larissa (1) Maranhão,Deyvid Diego Carvalho (1) Martins,Angélica Pires Batista (1) Melo,Vander de Freitas (1) Oliveira,Virlei Álvaro de (1) Santos,Glenio Guimarães (1) Ünak,Perihan (1) Mais... Palavra-chave Iron oxide (3) Deterioration of soil structure (1) Dryness (1) Hardness (1) Imaging (1) Isomorphic substitution (1) Kaolinite (1) Magnetite Nanoparticles (1) Plinthite (1) Radionuclide (1) Sequential analysis (1) Targeted drug delivery (1) Therapy (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2018 (1) 2013 (1) 2008 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Imaging and therapy with radionuclide labeled magnetic nanoparticles BABT Ünak,Perihan. Magnetic nanoparticles offer exciting new opportunities including the improvement of the quality of magnetic resonance imaging (MRI), hyperthermic treatment for malignant cells, site-specific drug delivery and also the recent research interest of manipulating cell membranes. The biological applications of these nanomaterials require these nanoparticles to have high magnetization values, size smaller than 20 nm, narrow particle size distribution and a special surface coating for both avoiding toxicity and allowing the coupling of biomolecules. In this review, we focus on the feasibility of radionuclide labeled magnetic nanoparticles, as drug carriers, and summarize recent advances in this field. Tipo: Info:eu-repo/semantics/article Palavras-chave: Magnetite Nanoparticles; Radionuclide; Imaging; Therapy; Targeted drug delivery; Iron oxide. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000700006 Lead and zinc in the structure of organic and mineral soil components Rev. Bras. Ciênc. Solo Kummer,Larissa; Melo,Vander de Freitas; Barros,Yara Jurema. In addition to the more reactive forms, metals can occur in the structure of minerals, and the sum of all these forms defines their total contents in different soil fractions. The isomorphic substitution of heavy metals for example alters the dimensions of the unit cell and mineral size. This study proposed a method of chemical fractionation of heavy metals, using more powerful extraction methods, to remove the organic and different mineral phases completely. Soil samples were taken from eight soil profiles (0-10, 10-20 and 20-40 cm) in a Pb mining and metallurgy area in Adrianópolis, Paraná, Brazil. The Pb and Zn concentrations were determined in the following fractions (complete phase removal in each sequential extraction): exchangeable; carbonates;... Tipo: Info:eu-repo/semantics/article Palavras-chave: Isomorphic substitution; Sequential analysis; Iron oxide; Kaolinite. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000200015 Hardening and Stability of Plinthic Materials of the Araguaia River Floodplain under Different Drying Treatments Rev. Bras. Ciênc. Solo Martins,Angélica Pires Batista; Santos,Glenio Guimarães; Oliveira,Virlei Álvaro de; Maranhão,Deyvid Diego Carvalho; Collier,Leonardo Santos. ABSTRACT Plinthite and petroplinthite occur frequently in Brazilian soils, but there is little information on the behavior of these materials. The aim of the present study was to assess the effect of different drying periods on the hardening and stability of plinthic materials of soils in the floodplain of the Araguaia River and the João Leite stream in Goiás. Soil samples were collected, with the aid of 0.10 m high and 0.15 m diameter PVC cylinders, directly from the plinthic horizons of five profiles of Plintossolos Argilúvicos (Plinthosols). Plinthite and soil matrix subsamples were obtained from these samples. Homogeneous petroplinthite samples were collected from the concretionary horizon of a Plintossolo Pétrico (Plinthosol) profile, and these were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Deterioration of soil structure; Dryness; Hardness; Iron oxide; Plinthite. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100305 Registros recuperados: 3 Primeira ... 1 ... Última

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