Cellular Materials
Mostrando 1-12 de 136 artigos, teses e dissertações.
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1. Alumina applied in bone regeneration: Porous α-alumina and transition alumina
Abstract Alumina is a polymorphic bioceramic that has been extensively investigated for application in bone regeneration. Dense α-alumina has been considered a suitable biomaterial for dental and orthopedic implants due to its superior mechanical properties. However, its use is limited due to its high inertia in a biological environment. Recent investigatio
Cerâmica. Publicado em: 2022
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2. The relationship between red cell distribution width and prognostic scores in myelodysplastic syndrome
ABSTRACT Introduction: The myelodysplastic syndrome (MDS) represents a group of hematopoietic neoplasms that is characterized by clonal hematopoiesis, cytopenia and abnormal cellular maturation. Red cell distribution width (RDW) refers to the variation degree of erythrocyte size and it is a reflection of anisocytosis. Higher values have been linked to adver
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
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3. Oxidative origin of sperm DNA fragmentation in the adult varicocele
ABSTRACT Purpose: Sperm DNA fragmentation is a major cellular mechanism underlying varicocele-related male infertility. However, the type of DNA fragmentation - whether oxidative or of another nature - remains unknown. Thus, the aim of this study was to evaluate single- and double-stranded sperm DNA fragmentation, and oxidative-induced sperm DNA damage in m
Int. braz j urol.. Publicado em: 2021-03
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4. A comparison of the sealing abilities between Biodentine and MTA as root-end filling materials and their effects on bone healing in dogs after periradicular surgery
ABSTRACT Objectives: To compare the sealing ability and biocompatibility of Biodentine with mineral trioxide aggregate (MTA) when used as root-end filling materials. Methodology: The Cell Counting Kit-8 (CCK-8) assay was used to compare the cytotoxicity of MTA and Biodentine. Twenty-one extracted teeth with a single canal were immersed in an acidic silver
J. Appl. Oral Sci.. Publicado em: 07/10/2019
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5. Desempenho térmico-acústico-mecânico de um compósito de matriz cimentícia leve reforçado com casca de arroz
RESUMO Visando desenvolver um novo produto com bom desempenho térmico-acústico-mecânico para servir como alternativa aos materiais comumente utilizados para vedação, foi produzido um compósito a partir de uma matriz cimentícia leve e casca de arroz. A matriz cimentícia consistindo em uma pasta de cimento com ar incorporado, que é intitulada por vár
Matéria (Rio J.). Publicado em: 10/06/2019
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6. CORK MEMBRANE FOR EFFICIENT OIL AND WATER SEPARATION
Cork is a renewable, biocompatible, environmentally friendly and abundant biological material with microscale cellular structure. Fabrication of filtration membranes for the separation of oil and water by utilizing such natural materials to replace nonnatural membranes is a green method. A cork membrane with a water contact angle greater than 150° and an oi
Quím. Nova. Publicado em: 2018-07
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7. Stress Distribution in Graded Cellular Materials Under Dynamic Compression
Abstract Dynamic compression behaviors of density-homogeneous and density-graded irregular honeycombs are investigated using cell-based finite element models under a constant-velocity impact scenario. A method based on the cross-sectional engineering stress is developed to obtain the one-dimensional stress distribution along the loading direction in a cellul
Lat. Am. j. solids struct.. Publicado em: 2017-08
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8. Preparation, Characterization and Biological Studies of Β-TCP and Β-TCP/Al2O3 Scaffolds Obtained by Gel-Casting of Foams
Replacement tissues for tissue engineering can be produced by seeding human cells onto scaffolds. In order to guarantee adequate bio-compatibility, porosity and mechanical resistance for promoting cellular growth, proliferation and differentiation within scaffold structures, it is necessary to investigate and improve materials and processing routes. β-trica
Mat. Res.. Publicado em: 22/05/2017
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9. Simulation of CP-Ti Recrystallization and Grain Growth by a Cellular Automata Algorithm: Simulated Versus Experimental Results
The application of cellular automata in materials science requires the conversion of the automata's rules and abstract general properties to rules and properties associated with the material and phenomena under study. In this paper we propose a model which uses cellular automata to simulate recrystallization and grain growth during isothermal and non-isother
Mat. Res.. Publicado em: 03/04/2017
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10. Prostate specific antigen and acinar density: a new dimension, the “Prostatocrit”
ABSTRACT Background Prostate-specific antigen densities have limited success in diagnosing prostate cancer. We emphasise the importance of the peripheral zone when considered with its cellular constituents, the “prostatocrit”. Objective Using zonal volumes and asymmetry of glandular acini, we generate a peripheral zone acinar volume and density. With
Int. braz j urol.. Publicado em: 2017-04
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11. COMO ESTUDAR INTERAÇÕES ENTRE NANOPARTÍCULAS E SISTEMAS BIOLÓGICOS
Although in recent years there has been an increasing amount of literature on nanotechnology and their clinical applications, it is still scarce a deep understanding of the interactions at the molecular levels between nanoparticles and cells. Studies demonstrating the underlying mechanisms of nanoparticles endocytosis, intracellular trafficking, and cellular
Quím. Nova. Publicado em: 2016-12
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12. Extracellular phospholipase production of oral Candida albicans isolates from smokers, diabetics, asthmatics, denture wearers and healthy individuals following brief exposure to polyene, echinocandin and azole antimycotics
Abstract Objective Candida albicans is the primary causative agent of oral candidosis, and one of its key virulent attributes is considered to be its ability to produce extracellular phospholipases that facilitate cellular invasion. Oral candidosis can be treated with polyenes, and azoles, and the more recently introduced echinocandins. However, once admini
Braz. J. Microbiol.. Publicado em: 2016-12