Bioceramics
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Evaluation of Bone Repair in the Mandible of Rabbits Using Biphasic Calcium Phosphate Micro-Macroporous Hydroxyapatite Bioceramics and Beta-Tricalcium Phosphate
Abstract Objective: To perform a clinical and histological evaluation, characterizing and proving the feasibility of the use of beta tricalcium phosphate (HA/βTCP) bioceramics as a bone defect repair material, comparing it with autogenous bone and blood clot in terms of osteoinductive, conductive, and genic capacities. Material and Methods: The experiment
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 10/10/2019
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2. Carregamento e caracterização do fármaco carboplatina na microestrutura microporosa do biomaterial granulado bifásico micro e nanoestruturado de fosfato de cálcio
RESUMO As biocerâmicas bifásicas hidroxiapatita/fosfato tricálcico-beta (HA/TCP-β) microporosas são pesquisadas e se destacam em aplicações biomédicas como substitutos dos tecidos ósseos. Estes biomateriais são biocompatíveis e apresentam microestruturas microporosas interconectadas, que permitem sua utilização no reparo do tecido ósseo. Devido
Matéria (Rio J.). Publicado em: 16/09/2019
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3. Carregamento e caracterização do fármaco carboplatina na microestrutura microporosa do biomaterial granulado bifásico micro e nanoestruturado de fosfato de cálcio
RESUMO As biocerâmicas bifásicas hidroxiapatita/fosfato tricálcico-beta (HA/TCP-β) microporosas são pesquisadas e se destacam em aplicações biomédicas como substitutos dos tecidos ósseos. Estes biomateriais são biocompatíveis e apresentam microestruturas microporosas interconectadas, que permitem sua utilização no reparo do tecido ósseo. Devido
Matéria (Rio J.). Publicado em: 20/05/2019
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4. Intrinsic Orientation of Hydroxyapatite Grains on the Surface of Dense Pellets Produced by Uniaxial Pressing
Bioceramics synthesized in laboratories must undergo biological tests that consider the final format and all the processing steps involved in the production of the final device. However, in many cases, the synthesized materials are characterized in formats very different from those that will ultimately be implanted into the body. Once living cells are direct
Mat. Res.. Publicado em: 08/04/2019
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5. RADIOACTIVE CEMENT OF PMMA AND HAP-Sm-153, Ho-166, OR RE-188 FOR BONE METASTASIS TREATMENT
RESUMO Polymethylmetacrylte (PMMA) é um composto utilizado na indústria e desde os anos 80's também tem sido empregado nas áreas odontológica e biomédica como constituinte de cimentos ósseos. A hydroxyapatite (HAp) é uma biocerâmica produzida naturalmente nos ossos. Esses dois componentes são constituintes fundamentais no preparo de cimentos ósseo
Acta ortop. bras.. Publicado em: 2019-02
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6. Interfacial Shear Stress with Pull-out Test at Zeolite Ceramic Matrix and SS316 Single Fiber
ABSTRACT Natural zeolite ceramic is a material that can be used as bioceramics but it is fragile to crack. The weakness of ceramics can be overcome by making ceramic metals. The use of SS316 (stainless steel 316) fiber to strengthen the zeolite ceramic had been done in order to determine the interfacial relationship by using a fiber pull-out test. The conten
Matéria (Rio J.). Publicado em: 05/03/2018
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7. Hydroxyapatite and a New Fibrin Sealant Derived from Snake Venom as Scaffold to Treatment of Cranial Defects in Rats
Biomaterials are used as a promising alternative to bone grafts, including bioceramics whose composition resembles that of bone and fibrin sealants due to their hemostatic properties. The objective was to evaluate the repair of cranial defects in 40 rats, grafted with hydroxyapatite and a new fibrin sealant derived from snake venom. The animals were divided
Mat. Res.. Publicado em: 2015-02
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8. Strontium Incorporation on Microspheres of Alginate/β-tricalcium Phosphate as Delivery Matrices
Strontium (Sr) is known to positively affect the mechanism of bone remodelling. Consequently, calcium phosphate bioceramics associated with alginate matrices containing strontium could improve bone regeneration due to gradual strontium release. This work aims to incorporate Sr on microspheres of alginate (ALG)/β-tricalcium phosphate (β-TCP) and evaluates t
Mat. Res.. Publicado em: 01/07/2014
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9. Cell response of calcium phosphate based ceramics, a bone substitute material
The aim of this study was to characterize calcium phosphate ceramics with different Ca/P ratios and evaluate cell response of these materials for use as a bone substitute. Bioceramics consisting of mixtures of hydroxyapatite (HAp) and β-tricalcium phosphate (β-TCP) powders in different proportions were pressed and sintered. The physical and chemical proper
Mat. Res.. Publicado em: 23/04/2013
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10. Síntese e caracterização de biomateriais de fosfatos de cálcio a partir de conchas calcárias fossilizadas / Synthesis and characterization of biomaterials of calcium phosphate in from calcareous fossilized shells
Research has demonstrated in recent decades, that calcium phosphate bioceramics and nanocomposite with calcium phosphate matrix may be the new generation of biomaterials to use in the repair of defects and reconstruction of bone tissue. This can be explained by new microstructural and nanostructural characteristics, interconnected microporosity, surface area
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2012
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11. Desenvolvimento e caracterização de microesferas de fosfato de cálcio bifásico / Development and characterization of biphasic calcium phosphate microspheres
The biphasic calcium phosphate is greatly applied in the replacement of osseous tissues and as dermal fillers due to its chemical similarity with the mineral part of bone and teeth. Due to this similarity, the calcium phosphates present, among other important properties, high biocompatibility, bioactivity and/or osteoconduction. They do not induce inflammato
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/06/2012
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12. Síntese e caracterização de fosfato de cálcio e hidroxiapatita: elaboração de composições bifásicas HA/TCP-β para aplicações biomédicas / Synthesis and characterization of calcium phosphate and hydroxyapatite: preparation of compositions biphasic HA/TCP- β for biomedical applications
Os Fosfatos de Cálcio (Ca/P) são a família de biocerâmicas mais conhecidas pelas suas aplicações biológicas. Existem vários polítipos de estruturas na razão Ca/P que tipicamente formam o grupo de compdstos chamados de apatita. Na atualidade existem muitos estudos direcionando a utilização de pós nanoestruturados de fosfatos de cálcio para a rec
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2011