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| Registros recuperados: 25 | |
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| Rosa,A.R.; Steffens,D.; Santi,B.; Quintiliano,K.; Steffen,N.; Pilger,D.A.; Pranke,P.. |
| The association of bioactive molecules, such as vascular endothelial growth factor (VEGF), with nanofibers facilitates their controlled release, which could contribute to cellular migration and differentiation in tissue regeneration. In this research, the influence of their incorporation on a polylactic-co-glycolic acid (PLGA) scaffold produced by electrospinning on cell adhesion and viability and cytotoxicity was carried out in three groups: 1) PLGA/BSA/VEGF; 2) PLGA/BSA, and 3) PLGA. Morphology, fiber diameter, contact angle, loading efficiency and controlled release of VEGF of the biomaterials, among others, were measured. The nanofibers showed smooth surfaces without beads and with interconnected pores. PLGA/BSA/VEGF showed the smallest water contact... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Emulsion electrospinning; VEGF; Stem cells; PLGA; Biomaterials. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000900601 |
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| Machado,L.G.; Savi,M.A.. |
| Shape memory alloys (SMA) are materials that have the ability to return to a former shape when subjected to an appropriate thermomechanical procedure. Pseudoelastic and shape memory effects are some of the behaviors presented by these alloys. The unique properties concerning these alloys have encouraged many investigators to look for applications of SMA in different fields of human knowledge. The purpose of this review article is to present a brief discussion of the thermomechanical behavior of SMA and to describe their most promising applications in the biomedical area. These include cardiovascular and orthopedic uses, and surgical instruments. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Shape memory alloys; Biomaterials. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000600001 |
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| Wodewotzky,T.I.; Lima-Neto,J.F.; Pereira-Júnior,O.C.M.; Sudano,M.J.; Lima,S.A.F.; Bersano,P.R.O.; Yoshioka,S.A.; Landim-Alvarenga,F.C.. |
| 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 combined use of biodegradable membranes with stem cell therapy may lead to promising results for patients undergoing unsuccessful conventional treatments. Thus, the aim of this study was to test the efficacy of using membranes composed of anionic collagen with or without the addition of hyaluronic acid (HA) as a substrate for adhesion and in vitro differentiation of bone marrow-derived canine MSCs. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Collagen scaffolds; Biomaterials; Hyaluronic acid; Mesenchymal stromal cells; Tissue engineering; Cell culture. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001200008 |
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| Santos Jr.,A.R.; Ferreira,B.M.P.; Duek,E.A.R.; Dolder,H.; Wada,M.L.F.. |
| Vero cells, a cell line established from the kidney of the African green monkey (Cercopithecus aethiops), were cultured in F-10 Ham medium supplemented with 10% fetal calf serum at 37°C on membranes of poly(L-lactic acid) (PLLA), poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) and their blends in different proportions (100/0, 60/40, 50/50, 40/60, and 0/100). The present study evaluated morphology of cells grown on different polymeric substrates after 24 h of culture by scanning electron microscopy. Cell adhesion was also analyzed after 2 h of inoculation. For cell growth evaluation, the cells were maintained in culture for 48, 120, 240, and 360 h. For cytochemical study, the cells were cultured for 120 or 240 h, fixed, processed for histological analysis,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poly(L-lactic acid); Poly(hydroxybutyrate- co-hydroxyvalerate); Blends; Biomaterials; Cell culture; Vero cells. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001100009 |
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| Registros recuperados: 25 | |
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