Anionic Collagen
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. In vitro cultivation of canine multipotent mesenchymal stromal cells on collagen membranes treated with hyaluronic acid for cell therapy and tissue regeneration
Support structures for dermal regeneration are composed of biodegradable and bioresorbable polymers, animal skin or tendons, or are bacteria products. The use of such materials is controversial due to their low efficiency. An important area within tissue engineering is the application of multipotent mesenchymal stromal cells (MSCs) to reparative surgery. The
Braz J Med Biol Res. Publicado em: 2012-12
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2. UTILIZAÇÃO DE ESCAMAS DO PEIXE CORVINA PARA ADSORÇÃO DE Cr(VI) EM MEIO AQUOSO CINÉTICA E TERMODINÂMICA POR CALORIMETRIA ISOTÉRMICA CONTÍNUA.
Adsorption has become a key process for the removal of very low amounts of undesirable components from waters and wastewaters and in the sense for being environmental friendly as well. This work has as aim the study of some properties of scales of Corvina fish (Micropogonias furnieiri) as a new adsorbent to remove Cr(VI) from aqueous solutions. The Corvina s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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3. Characterization and in vitro release studies of tetracycline and rolitetracycline imobilized on anionic collagen membranes
This work reports the covalent immobilization of tetracycline and rolitetracycline over anionic collagen membranes and the drug release studies as an effort to develop a two stage drug release based on diffusion (fast release) and on the rate of membrane biodegradation (slow release). Independent from casting conditions antibiotics incorporated by dispersion
Materials Research. Publicado em: 2009-03
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4. Estudo comparativo de colágeno hidrolisado e comercial com adição de PVA / Comparative study of commercial and anionic collagen blended with PVA
The development of new materials has been based on the mix of two or more polymers or biopolymers where solutions are mixed in different portions trying to get materials with distinct properties from their precursors. In this work different collagen solutions and collagen-PVA blends were analyzed. The used collagen was the type I, however obtained from two d
Publicado em: 2009
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5. Mineralização in vitro de matrizes colagênicas derivadas de tendões calcâneos bovinos e de avestruz / In vitro mineralization of anionic collagen scaffolds prepared from bovine and ostrich calcaneous tendons
One of greatest challenges of modern orthopedics is to restore bone tissue that has been lost due to sickness or accident. Searching for substitutes for grafts, biomaterials have been commonly used for recovery of bone tissue. Between different types of biomaterials, several are based on collagen. In addition to have important role in tissue structure, colla
Publicado em: 2009
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6. Chitosan:xanthan:anionic collagen hydrogels. Formulation and characterization / Obtenção e caracterização de hidrogéis de quitosana, xantana e colágeno aniônico
Hydrogel are polymeric materials, which have the capacity to retain a great amount of water, and are often used as biomaterials. Chitosan, xanthan and collagen present biocompatibility and they can be used in tissue regeneration and drug delivery. In this work hydrogels were prepared by the mixture with chitosan (from β-quitina), commercial xanthan and
Publicado em: 2008
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7. Mineralização in vitro de matrizes de colágeno aniônico derivadas de tecidos biológicos / In vitro mineralization of anionic collagen matrices
The reconstruction of osseous defects is still a problem that affects millions of people and medicine tries to solve it. One alternative to solve these problems has been the development of biomaterials that can be used as inductors in the osseous repair process. Collagen is a natural polymer able to promote healing and bone regeneration, and among hydroxyapa
Publicado em: 2008
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8. Avaliação de matrizes tridimensionais colagênicas como carreadores celulares para a bioengenharia óssea / Evaluation of three-dimensional collagenic matrices as cellular scaffolds to bone bioengineering
The therapy of bone defects constitutes one of the great challenges of the medicine and dentistry. Although autogenous is considered "gold standart", presents limitations as the necessity of second surgical site, limitation of bone availability and lack of previsibility. Tissue bioengineering appeared as a promising treatment for critical bone defects conjug
Publicado em: 2008
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9. Treatment of the chromium-containing solid wastes from leather industry: use in adsorption process and as nitrogen source in agriculture. / Tratamento de rejeitos sÃlidos contendo cromo da indÃstria de couro: uso em processos de adsorÃÃo e como fonte de nitrogÃnio na agricultura.
The leather industry has a great economic importance for Brazil, however it is responsible for the generation of solid wastes containing chromium (sawdust and stripes of wet blue leather), which need suitable disposal for being classified as class 1 waste. The objectives of this work were to treat this waste for chromium removal and to use the resultant mate
Publicado em: 2007
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10. Supramolecular organization, spatial orientation and optical properties of extracellular proteins in corneas and aortas from diabetic spontaneous mice / Organização supramolecular, orientação espacial e propriedades opticas de proteinas extracelulares em conrneas e aortas de camundongos espontaneamente diabeticos
Diabetes mellitus is a chronic disorder of the carbohydrate, lipids and protein metabolism. A characteristic feature of this disorder is the hyperglycemia due to a deficient insulin production or to metabolic defects on its response in peripheral tissues. Hyperglycemia induces non-enzymatic glycosylation of proteins, which is responsible for advanced glycosy
Publicado em: 2007
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11. Pulp response of anionic lyophilized collagen matrix with or without hydroxyapatite after pulpotomy in dog's teeth
The aim of the present study was to evaluate histologically the pulp response of anionic lyophilized collagen matrix with or without hydroxyapatite as a biomaterial pulp-capping agent in pulpotomy of dogs' teeth. Sixty pre-molar roots from three dogs were used. After pulpotomy, the remaining pulp tissue was capped with one of the following materials: Group I
Materials Research. Publicado em: 2006-06
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12. Three-dimensional implants of polyanionic collagen in bone defects produced in the femur of ovariectomized rats / Implantes tridimensionais de colageno polianionico em falhas osseas produzidas no femur de ratas ovariectomizadas
There has been recent interest in the development of biomaterials that can be used as replacement of bone tissue or that act as inducer of the healing process in the case of bone fractures or defects. Biomaterials consisting of three-dimensional extracellular matrix elements (aECM) composed of collagen/elastin have the advantage that their properties can be
Publicado em: 2006