A5063966395- Bone Tissue Engineering Materials
- Titanium Alloys Microstructure and Properties
- Orthopaedic implants and arthroplasty
- Metal and Thin Film Mechanics
- Magnesium Alloys: Properties and Applications
- Preterm Birth and Chorioamnionitis
- 3D Printing in Biomedical Research
- Electrospun Nanofibers in Biomedical Applications
- Surface Treatment and Coatings
- biodegradable polymer synthesis and properties
- Corrosion Behavior and Inhibition
- Advanced Cellulose Research Studies
- Neonatal Respiratory Health Research
- Polymer Nanocomposite Synthesis and Irradiation
- Biofuel production and bioconversion
- Pregnancy-related medical research
- Dental materials and restorations
- Polymer Surface Interaction Studies
- RNA Interference and Gene Delivery
- Polysaccharides and Plant Cell Walls
- Pigment Synthesis and Properties
- Graphene and Nanomaterials Applications
- Intermetallics and Advanced Alloy Properties
- Dendrimers and Hyperbranched Polymers
- Laser-Ablation Synthesis of Nanoparticles
Pontifícia Universidade Católica do Paraná
2021-2025
Athlone Institute of Technology
2018-2023
Serviço Nacional de Aprendizagem Industrial
2023
Universidade Federal do Paraná
2012-2022
Centre Hospitalier Universitaire de Clermont-Ferrand
2021-2022
Microfibrillated cellulose as a reinforcement agent has been investigated extensively due to their unique characteristics, which can reorder the structure of polymers and hydrogels leading improved mechanical properties with minimal disadvantages in terms targeted original applications. However, effect using macro- micro-fibrillated onto polyvinyl alcohol is still unknown, because ability for both be produced from freeze-thawing mechanisms – hydrogen bonding - there potential synergism....
Titanium and its alloys have been the material of choice for orthopedic implants due to their excellent physical properties as well biocompatibility. However, titanium is not able integrate with bone mismatch mechanical properties. Additionally, has a micro-nano hierarchy, which absent on titanium's surface. A potential solution former make surfaces porous bring closer that bone, latter fabricate nanostructures. In this study, micro-porous were hydrothermally treated using an alkali medium...
Polyvinyl alcohol/polyacrylic acid (PVA/PAA) bilayer hydrogel nanofibres were successfully fabricated by electrospinning and physically crosslinked via heat treatment. The effects of the thermal annealing process on structure, morphology, swelling, properties hydrophilicity electrospun investigated. In addition, these membranes also used to incorporate doxorubicin clarithromycin for osteosarcoma treatment, one in each layer. These drugs because it is hypothesized this work that a synergism...
Titanium (Ti) is a popular biomaterial for orthopedic implant applications due to its superior mechanical properties such as corrosion resistance and low modulus of elasticity. However, around 10% these implants fail annually bacterial infection poor osseointegration, resulting in severe pain suffering the patients. To improve their performance, nanoscale surface modification approaches doping trace elements on surfaces can be utilized which may help improving cell adhesion better...
The present study produced binary titanium-niobium alloys Ti-xNb with high niobium percentage (x = 50, 80 e 90 wt.%) aiming to apply it as a base material in osseous implant devices. TiNb presented cubic crystalline phase, lower corrosion rate than titanium, elastic modulus values, and superior cellular viability titanium niobium. Ti50Nb alloy among all analyzed metallic substrates showed the best values of modulus, properties, wettability, viability. Thus, this work suggests Ti/Nb ratio...
There are various surface treatments used to modify titanium surfaces render it bioactive. In this study commercially pure (cp Ti), grade 2 were modified by acid etching (AE) and anodic oxidation (OA) in order evaluate the bioactivity vitro of these using simulated body fluid (SBF). The AE was realized a mixture acids AO 1 mol.L-1 sulfuric acid. films obtained under potentiostatic mode, during 60s as anode bar titanium. All that means cp Ti, analyzed concerning morphology, rugosity,...
Titanium-based orthopedic implants are gaining popularity in recent years due to their excellent biocompatibility, superior corrosion resistance and lightweight properties.
Modified titanium nanotubes (TiO 2 NTs) coatings are grown in simulated body fluid (SBF) from Ti cp and 6 Al 4 V. The addition of 1% v/v SBF to the electrolyte neither modifies film morphology nor structural oxide characteristics for both metal substrates. However, an improvement mechanical properties (hardness elasticity model) wettability is observed. From bioactive assay, a higher amount fluorapatite was detected on top TiO NTs prepared SBF‐based electrolyte.
Among titanium alloys with non-toxic elements, the Ti-25Nb-25Ta alloy has good elastic behavior for applications in osseous implants, biocompatibility, and excellent corrosion resistance. The present study aimed to better biocompatibility characteristics of modifying its surface through Plasma Electrolytic Oxidation (PEO) treatment. formed oxide coating is amorphous composed two distinct porous formations: smaller hole-shaped pores larger volcano-like pores. regions formation hole shaped...
Abstract Approaches to obtain nanocellulose have been extensively suggested, and among the most competitive methodologies includes mechanical defibrillation, which results in a gel suspension that can be used variety of applications. However, standard procedures inhomogeneous fibre sizes due its physical approach. Pre-treatments such as enzymes, but their cost is disadvantage. In this work, we suggest use cryoslash for bleach kraft pulp using simple methodology embedding dry distilled water...
Titanium and its alloys, Niobium are widely employed for implants. Their superficial properties responsible a suitable interaction between metal tissue. A bioactive layer to resemble the bone structure can be generated by plasma electrolytic oxidation (PEO). This study aims obtain hydroxyapatite (HAp) layers in one-step processing, characterizing evaluating resulting of pure titanium, Ti-30Nb-8Zr, niobium, immersed electrolyte composed 80% calcium acetate monohydrate 20% phosphoric solution,...
Chalcones (1,3-diaryl-2-propen-1-ones) are naturally occurring polyphenols with known anticancer activity against a variety of tumor cell lines, including osteosarcoma (OS). In this paper, we present the preparation and characterization spheres (~2 mm) from polyvinyl alcohol (PVA) containing combination 4′-Amino-1-Naphthyl-Chalcone (D14) doxorubicin, to act as new polymeric dual-drug delivery. D14 is potent inhibitor progression and, when combined presents synergetic effect; hence,...
By altering some synthesis variables, the morphology and structural properties of anodic TiO2nanotube arrays (TiO2NTs) can be tailored to a specific application. This study aims investigate effect electrolyte-containing ions from human plasma annealing temperature on structural, morphological, mechanical parameters TiO2NTs films, targeting its potential biomedical applications. Bio-inspired were grown Ticpand Ti6Al4V alloy by potentiostatic anodization in recently developed SBF-based...