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| Linan,Lamia Zuniga; Lima,Nadson Murilo Nascimento; Benatti,Carol; Xavier,Mariana; Rodrigues,Ana A.; Manenti,Flavio; Jardini,Andre; Maciel Filho,Rubens; Gilioli,Rovilson. |
| ABSTRACT A cytotoxicity study is performed on a poly(methyl methacrylate) polymer (PMMA) to be used for the fabrication of bone tissue by Rapid Prototyping (RP). The solution polymerization is conducted in a pilot plant reactor using more appropriated reagents in consideration of the medical application. Moreover, the polymer is efficiently handled to avoid the side effect of the monomer, reducing the concentration of this specie to 287,731 µg MMA/kg PMMA. The cytotoxicity of the polymer is determined through growth monitoring, adherence and morphology of L-929 cells. Additionally, MTT and LIVE/DEAD tests are performed. The results showed continuous and progressive growth of the cells on the surface of the specimens. Moreover, the material did not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: PMMA; Synthesis; Cytotoxicity; Viability; Mesenchymal cells.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100601 |
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| Coutinho,Mônica Ronobo; Conceição,Wagner André dos Santos; Paraíso,Paulo Roberto; Andrade,Cid Marcos Gonçalves; Omoto,Edilson Sadayuki; Jorge,Regina Maria Matos; Maciel Filho,Rubens; Jorge,Luiz Mario de Matos. |
| A comparative analysis of the theoretical-experimental study, developed by Hsu on the hydration of Amsoy 71 soybean grain, was performed through several soaking experiments using CD 202 soybean at 10, 20, 30, 40, and 50 °C, measuring moisture content over time. The results showed that CD 202 soybean equilibrium moisture content, Xeq, does not depend on temperature and is 21% higher than that found by Hsu, suggesting that soybean cultivar exerts great influence on Xeq. The Hsu model was numerically solved and its parameters were adjusted by the least squares method, with maximum deviations of +/- 10% relative to the experimental values. The limiting step in the mass transfer process during hydration corresponds to water diffusion inside the grain, leading... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soaking; Mathematical modeling; Distributed parameters; Mass diffusivity; Equilibrium moisture. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000100003 |
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