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	Provedor de dados BABT (2) Autor Campos,Tarcisio Passos Ribeiro de (1) Cuperschmid,Ethel Mizrahy (1) Lacerda,Kássio André (1) Lameiras,Fernando Soares (1) Silva,Viviane Viana (1) Valente,Eduardo Sarmento (1) Mais... Palavra-chave Brachytherapy (2) Cancer control (1) Ceramic seeds (1) HeLa cells (1) Holmium (1) Hydroxyapatite (1) Neutron activation analysis (NAA) (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2011 (1) 2007 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Quantification of iodine in porous hydroxyapatite matrices for application as radioactive sources in brachytherapy BABT Lacerda,Kássio André; Lameiras,Fernando Soares; Silva,Viviane Viana. In this study, non-radioactive iodine was incorporated in two types of biodegradable hydroxyapatite-based porous matrices (HA and HACL) through impregnation process from sodium iodine aqueous solutions with varying concentrations (0.5 and 1.0 mol/L) . The results revealed that both systems presented a high capacity of incorporating iodine into their matrices. The quantity of incorporated iodine was measured through Neutron Activation Analysis (NAA). The porous ceramic matrices based on hydroxyapatite demonstrated a great potential for uses in low dose rate (LDR) brachytherapy. Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydroxyapatite; Brachytherapy; Neutron activation analysis (NAA). Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000400016 Evaluation of hela cell lineage response to β radiation from Holmium-166 embedded in ceramic seeds BABT Valente,Eduardo Sarmento; Cuperschmid,Ethel Mizrahy; Campos,Tarcisio Passos Ribeiro de. This work studied the effects of β radiation of Ho-166 embedded in ceramic seeds on HeLa cells. Methodology consisted in the production of ceramic seeds with holmium-165 by sol-gel route. Chemical and physical characterizations of the seeds were performed. Subsequently, nuclear characterization was performed by gamma spectrometry. Experimental and theoretical activities were defined and initial dose rate were evaluated by MIRD (Medical Internal Radiation Dose Committee) methodology. The seeds were placed in confluent culture flasks and remained for six radionuclide half-lives. Biological results were represented by a clean 6 mm diameter area around the seed where the tumour cells were killed. The initial dose rate was 15.5 Gy. h-1. The maximum absorbed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachytherapy; Ceramic seeds; Holmium; Cancer control; HeLa cells. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000500013 Registros recuperados: 2 Primeira ... 1 ... Última

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