A5015292326- Bone Tissue Engineering Materials
- Dental Implant Techniques and Outcomes
- Advanced ceramic materials synthesis
- Dental materials and restorations
- Orthopaedic implants and arthroplasty
- Endodontics and Root Canal Treatments
- Polymer Surface Interaction Studies
- Electrospun Nanofibers in Biomedical Applications
- Dental Radiography and Imaging
- Maternal and Neonatal Healthcare
- Minerals Flotation and Separation Techniques
- Calcium Carbonate Crystallization and Inhibition
- Nuclear Materials and Properties
- Titanium Alloys Microstructure and Properties
- Bone and Dental Protein Studies
- Mining Techniques and Economics
- Homicide, Infanticide, and Child Abuse
- Collagen: Extraction and Characterization
- Magnesium Oxide Properties and Applications
- Mineral Processing and Grinding
- Shape Memory Alloy Transformations
- Acoustic Wave Resonator Technologies
- Ferroelectric and Piezoelectric Materials
- Engineering Technology and Methodologies
- Microwave Dielectric Ceramics Synthesis
Brazilian Association of Psychiatry
2024
Universidade Federal do ABC
2006-2023
Universidade Federal de São Paulo
2019
Instituto de Pesquisas Energéticas e Nucleares
2004-2007
The aim of this study was to characterize calcium phosphate ceramics with different Ca/P ratios and evaluate cell response these materials for use as a bone substitute. Bioceramics consisting mixtures hydroxyapatite (HAp) β-tricalcium (β-TCP) powders in proportions were pressed sintered. physical chemical properties bioceramics then characterized. Characterization the biological based on analysis using cultured fibroblasts. number cells attached samples counted from SEM images exposed...
The bioinert surface of silicon nitride ceramics led us to investigate the additions SiO2, CaO and Al2O3 in order aid liquid phase sintering improve mechanical properties biological behavior final materials. sintered materials reached ca. 97% theoretical density total α→β-Si3N4 transformation. samples had relatively high values fracture toughness while their elastic modulus were lower than those conventional ceramics. Apatite deposits observed on surfaces analyzed after SBF (simulated body...
Induction of an apatite-forming ability on a 100% Y2O3-ZrO2, Al2O3, and 80/20 20/80 wt% zirconia-alumina (Y2O3-ZrO2-Al2O3) composite polycrystals via chemical treatment with 5M H3PO4 have been investigated. The treatments produced Zr-O surface functional groups, which are known to be effective for apatite nucleation in simulated body fluid. It’s believed that Al-OH groups not nucleation. I this work was shown nucleates substrate alumina treat untreated chemically. This implies Al- OH
In many 'in-vivo' and 'in-vitro' studies, the behavior of calcium phosphate ceramics like beta - tricalcium in biological environments has been reported to be predictive positive. terms bone tissue growth, these are attractive biomaterials due their porous microstructures. To obtain biomaterial quality ceramics, this investigationbeta- TCP were prepared by a special consolidation method with albumin as foam generating agent. This technique enables variety formats complex geometries prepared....
The potential of porous materials for applications in the medical, engineering and pharmaceutical areas has been widely reported. Several processing techniques have contributed to progress research involving biomaterials. To this purpose, a globular protein based (i.e. ovalbumin) consolidation approach proposed. In present study, hydroxyapatite: -tricalcium phosphate - biphasic ceramics (BCP), was processed by direct using protein-action technique. ceramic exhibited appropriate pore...
In this work, (K0.48Na0.52)NbO3 (KNN) ceramics were prepared by using Spark Plasma Sintering (SPS) method applying different heating rates. The microstructural evolution of the was analyzed and results correlated with possible sintering mechanisms. analysis revealed homogeneous microstructures nanometric grains. It noticed that increasing rate grain size decreases bimodal growth is suppressed. Master Curve constructed an apparent activation energy 660 kJ/mol determined. From result, it to...
O capeamento pulpar é uma medida importante e muito usada no cotidiano da prática odontológica e, quando realizado de forma consciente, baseado em um bom diagnóstico condição momento exposição, pode prevenir o dente sofrer intervenção endodôntica. Além do hidróxido cálcio, outros materiais vêm sendo testados quanto a sua ação promover reparo pela formação ponte dentina, após direto. Uma das alternativas viáveis para são as cerâmicas à base fosfatos destacando-se hidroxiapatita (HAp) fosfato...
Many techniques are used to assess biomaterials implants, always intending measure osseointegration success and tissue response facing the implanted material. Calcium phosphates widely as biomaterial a major component of bone. processing methods have been achieve porous materials allow bone ingrowth with an osteoconductive scaffold for To obtain macroporous BCP implant it was processed by direct consolidation using protein-action technique, globular protein based ovalbumin. The samples were...
Emergencies in the pregnancy and postpartum are less frequent than other groups, but not uncommon. However, literature on subject is scarce controversial. The objective of this article to present some recommendations for management most common psychiatric emergencies that may occur or period. To end, work has been driven by a panel global experts severe mental health illnesses, selected Brazilian Psychiatric Association. Although many empirical, it already possible rely information provides...
In recent years, the processing of porous ceramic materials for implant applications has motivated development and optimization new technologies. To this purpose, a globular protein based (i.e. ovalbumin) consolidation approach been proposed. present study, hydroxyapatite:b-tricalcium phosphate - biphasic ceramics (BCP), was processed by using protein-action technique. The exhibited appropriate pore configuration in terms size, morphology distribution. vitro reactivity dissolution behavior...
In many in-vivo and in vitro studies, the behavior of calcium phosphate ceramics like β - tricalcium biological environments has been reported to be predictive positive. terms bone tissue growth, this ceramic can more attractive presenting a porous microstructure. To obtain biomaterial quality ceramics, investigation β- TCP were prepared by special consolidation method with albumin as foam generating agent. This technique enables preparation variety formats complex geometries. samples using...
In the last years, porosity in ceramic materials for implants production has motivated development of various technologies. Calcium phosphate ceramics, special tricalcium - TCP, are very promising as bone substitutes and scaffolds tissue engineering. The macroporosity incorporation TCP ceramics by porogenic, foaming consolidator agent, globular protein (ovalbumin) was focus this work. Preliminary studies zeta potential were made to have a suitable suspension. Ovalbumin amounts (5-7 wt%)...