5 documents found, page 1 of 1
Caracterização de celulose bacteriana obtida a partir de resíduos agroindustriais
Duarte, Eden Batista; Feitosa, Judith Pessoa de Andrade; Rosa, Morsyleide de Freitas; Borges, Maria de Fátima; Souza Filho, Men de Sá Moreira deA celulose bacteriana (CB) produzida pela linhagem de Gluconacetobacter hansenii encontra-se entre os biopolímeros de maior interesse. Tradicionalmente, ela é produzida a partir de meios de cultura caros, resultando em custos de produção muito elevados, o que limita seu uso para aplicações diversas. O emprego de fontes mais baratas de nutrientes, tais como resíduos da agroindústria, é uma estratégia interessant...
Síntese de mistura bifásica de fosfatos de cálcio via radiação por microondas
Duarte, Eden Batista; Nogueira, Ricardo Emílio Ferreira Quevedo; Silva, Cléber Cândido da; Albuquerque, José Silvio VerasSome of the calcium phosphates are classified as resorbable biomaterial that dissolve under certain physiological conditions. Hydroxyapatite (HÁ) and β-tricalcium phosphate (β-TCP) receive special attention for their large potential application as bone graft materials. They are chemically stable and have almost no adverse biological effects. In this study, apatite bioceramics were obtained from solid-state reac...
Citotoxicidade in vitro de nanopartículas de fosfato tricálcico-β sintetizado v...
Silva, Suely Alves; Nogueira, Ricardo Emílio Ferreira Quevedo; Teixeira, Joelane Maria de Carvalho; Albuquerque, José Silvio Veras; Duarte, Eden BatistaThe β-tricalcium phosphate (β-TCP) is a synthetic material that present similar chemical composition to bone tissue and is frequently used as biomaterial. In this research, β-TCP was synthesized by solid state reaction and characterized by X-ray Diffraction (XRD), Infrared (IR) Spectroscopy, Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDX). The surface area and particle size dis...
Processamento de hidroxiapatita por microondas: síntese de pós e sinterização d...
Duarte, Eden BatistaBioceramic are substances or combination of substances which has some clinical applicability and can be used for treating or replacing any tissue, organ or function of the body. They are chemically stable and have almost no adverse biological effects. The most widely used bioceramics for tissue reconstitution are calcium phosphate based bioceramics having Ca/P ratio changing from 0.5 to 2.0, which leads to dife...
Produção de nanocompósitos de celulose bacteriana e hidroxiapatita como rota pa...
Duarte, Eden BatistaEnvironmental issues have supported the interest in renewable sources and agroindustrial residues became a significative resource for the production of new materials, chemicals and energy. This thesis proposes the use of agroindustrial residues (cashew juice and sisal liquid waste) to obtain bacterial cellulose (BC) for further elaboration of nanocomposites with hydroxyapatite (HA). The production of BC membran...