Surface Engineering
Mostrando 1-12 de 199 artigos, teses e dissertações.
-
1. Characterization and potential applications of new boron-phosphate glass in the CaO-P2O5-K2O-B2O3 system
Abstract Boron phosphate glasses are known for their unique properties and have been investigated as biodegradable materials for biomedical applications. In this context, the present research studied the characterization of physical, mechanical, and bioactive properties of new boron-phosphate glass in the CaO-P2O5-K2O-B2O3 system produced by the melt-quenchi
Cerâmica. Publicado em: 2022
-
2. Evaluation of different protocols for culturing mesenchymal stem cells derived from murine bone marrow
ABSTRACT Introduction: Culturing bone marrow mesenchymal stem cells (BM-MSCs) is a key point in different fields of research, including tissue engineering and regenerative medicine and studies of the bone marrow microenvironment. However, isolating and expanding murine BM-MSCs in vitro has challenged researchers due to the low purity and yield of obtained c
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
-
3. Effect of Suture on Mechanical Properties of Stitched Thermal Protection Sandwich
This paper investigates the tensile properties and bending performances of stitched thermal protection structure in engineering, and the effect of stitching density on mechanical properties, via a model of ceramic-aerogel stitched sandwich. With the help of ANSYS, titanium alloy bottom plate was added to the bottom surface of the thermal protection structure
Mat. Res.. Publicado em: 13/01/2020
-
4. Análise da implantação de reservatórios de detenção de forma que sejam minimizados os impactos causados por inundações
RESUMO Por causa do avanço da ocupação urbana e consequente impermeabilização dos solos, ocorre um aumento do escoamento superficial, provocando, assim, inundações mais frequentes do que as que existiam quando a superfície era permeável. Este trabalho teve como objetivo propor o uso de reservatório de detenção como técnica compensatória de dren
Eng. Sanit. Ambient.. Publicado em: 20/12/2019
-
5. Characterization and Comparative Analysis of Corrosion Resistance of 4 High Manganese Steels Models in Aqueous Solution of NaCl
The liquefied natural gas volumes that currently need to be stored and/or transported require engineering to consistently develop materials that combine high mechanical strength and low manufacturing costs. The present work brings the study of four models of high manganese steels (non-commercials), to demonstrate the feasibility of being used in the petroche
Mat. Res.. Publicado em: 09/12/2019
-
6. In vitro Evaluation of PHBV/PCL Blends for Bone Tissue Engineering
The objective of this study was to evaluate Vero cells in in vitro biocompatibility tests with pure PHBV and PCL and 75/25 and 50/50 blends developed for bone tissue bioengineering in dense or porous forms. The biomaterials were characterized morphologically by scanning electron microscopy, (SEM) stereoscopic imaging (SI), and micrometer measurement. Cellula
Mat. Res.. Publicado em: 25/11/2019
-
7. Avaliação tribológica de óleos hidráulicos biodegradável e mineral com deslizamento entre as ligas de Cu-Zn e WC-CoCr
RESUMO A correta seleção dos óleos lubrificantes e das superfícies de contato melhoram o desempenho e reduzem o consumo de energia das máquinas Por isso, a engenharia de superfícies propõe novos revestimentos aos quais seu comportamento tribológico combinado com o uso de óleos biodegradáveis em componentes de sistema hidráulicos, não são conheci
Matéria (Rio J.). Publicado em: 25/11/2019
-
8. HYDROXYAPATITE - CARBON NANOTUBE COMPOSITES FOR DRUG DELIVERY APPLICATIONS
Abstract The aim of this study was the synthesis of composites containing hydroxyapatite (Hap) or silicon substituted hydroxyapatite (HapSi), carboxyl functionalized carbon nanotubes (fMWCNT) and gelatin (G) in different ratios. Ibuprofen (IBU) was chosen as a model drug for the formulation of extended-release dosage forms. The obtained composites were chara
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
-
9. Chitosan Imparts Better Biological Properties for Poly(ε-caprolactone) Electrospun Membranes than Dexamethasone
Poly(ε-caprolactone), an aliphatic polyester with biodegradability and cytocompatibility, has been used to create scaffolds for tissue engineering purposes. However, the hydrophobicity and low water absorptivity of poly(ε-caprolactone) reduce cell anchorage on their membranes. Here, poly(ε-caprolactone)-based scaffolds were prepared by electrospinning of
J. Braz. Chem. Soc.. Publicado em: 12/08/2019
-
10. BIOTECHNOLOGICAL APPLICATION OF SURFACE MODIFIED CERIUM OXIDE NANOPARTICLES
ABSTRACT Re-engineering of chemical materials at the nanoscale level that employ modification and improvement in their physical and chemical properties has been constantly pursued for application in biomedical and biotechnology industries. Moreover, immobilization of catalysts on these bio/chemically modified nanomaterials improved the performance of enzymes
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
-
11. Blood compatibility assessments of electrospun polyurethane nanocomposites blended with megni oil for tissue engineering applications
Abstract: Tissue engineering holds as a prominent technique to repair or replace the damaged human parts to recreate its native function. In this research, a novel scaffold based on polyurethane (PU) comprising megni oil was electrospun for tissue engineering applications. The obtained polyurethane blended with megni oil nanofibers were characterized by scan
An. Acad. Bras. Ciênc.. Publicado em: 19/06/2019
-
12. Water use efficiency of different production techniques for zucchini
ABSTRACT. The effects of pulse drip, drip line position and soil mulch on water use efficiency in yields of zucchini cv. Clarinda were evaluated. The experiment was conducted in the experimental area of the Engineering Department of the Federal University of Lavras, Lavras, Minas Gerais State, Brazil, for two years. For the first year of the experiment, the
Acta Sci., Agron.. Publicado em: 13/06/2019