A5073923696- biodegradable polymer synthesis and properties
- Electrospun Nanofibers in Biomedical Applications
- Bone Tissue Engineering Materials
- Microplastics and Plastic Pollution
- Nanocomposite Films for Food Packaging
- Polymer crystallization and properties
- Additive Manufacturing and 3D Printing Technologies
- Hydrogels: synthesis, properties, applications
- Polymer Nanocomposites and Properties
- 3D Printing in Biomedical Research
- Orthopaedic implants and arthroplasty
- Advanced Polymer Synthesis and Characterization
- Lattice Boltzmann Simulation Studies
- Natural Fiber Reinforced Composites
- Polysaccharides Composition and Applications
- Recycling and Waste Management Techniques
- Innovative Microfluidic and Catalytic Techniques Innovation
- Microfluidic and Capillary Electrophoresis Applications
- Adsorption, diffusion, and thermodynamic properties of materials
- Advanced Sensor and Energy Harvesting Materials
- Synthesis and properties of polymers
- Biopolymer Synthesis and Applications
- Reconstructive Facial Surgery Techniques
- Synthesis and Biological Evaluation
- Plant and soil sciences
Simón Bolívar University
2013-2025
Centro de Tecnologia da Informação Renato Archer
2013-2024
Universidad Simón Bolívar
2011-2020
Rede de Química e Tecnologia
2018
Universidade Estadual Paulista (Unesp)
2016
Biopolymères Interactions Assemblages
2008
Institut National de la Recherche Agronomique
2006
University of Minho
2005
Université Laval
2004
Cork is a natural, renewable, sustainable raw material that has been used for many centuries. As result of this very long term interest, the scientific literature on cork extensive. The present review focuses chemical composition, physical and mechanical properties its products sub-products. substantial efforts to fully characterise cork, as well new developments evolving research, are reviewed, beginning with histology, growth morphology (at macro- microscales). structure analysed in...
Nowadays, the need to reduce dependence on fuel products and achieve a sustainable development is of special importance due environmental concerns. Therefore, new alternatives must be sought. In this work, extruded fibers from poly (lactic acid) (PLA) (butylene adipate-co-terephthalate) (PBAT) added with cinnamon essential oil (CEO) were prepared characterized, hydrolytic degradation was assessed. A two-phase system observed spherical particles PBAT embedded in PLA matrix. The thermal...
We have studied the hydrolytic degradation of high molecular weight poly(p-dioxanone), PPDX, sutures. The samples were degraded either in distilled water or a phosphate buffer at 37 degrees C, and starting viscosity-average was 130 kg/mol. PPDX occurs an approximate two stage process where amorphous regions sample are attacked faster than crystalline sample. changes experienced by as proceeded successfully monitored viscosimetry, differential scanning calorimetry (DSC), loss, pH changes,...
Biofabrication is an incipient and fast-growing field of research that continues to develop groundbreaking innovations. Considerable progress has also been made in additive manufacturing technologies, which are used for the production complex geometry using biomaterials, such as scaffolds and, most recently, bioink-based structures. Some topics related these new breakthroughs tissue engineering bioprinting will be discussed. Additionally, obtained experimental results this work contribute...
The crystallisation and spherulitic morphology of poly(p-dioxanone) (PPDX), a thermoplastic polyester-ether used for medical applications have been studied. Polarised Optical Microscopy (PM) revealed that isothermally crystallised PPDX exhibits large double banded spherulites with mean banding spacing increases as the temperature increases. lack resolution optical microscopy prevents from being clearly observed at temperatures below 75°C. changed somewhat function well developed structures...
We reviewed the current status of microplastic research in Latin America and Caribbean based on a sample 193 papers that analyzed environmental concentration aquatic terrestrial ecosystems. Most were published from researchers Brazil, Mexico, Argentina Chile. Overall, 63.1% studied microplastics marine ecosystems, followed by study freshwater ecosystems (18.2%), estuarine (13.6%) environments (5.1%). Biota samples 40.3% studies, while 34.4% sediment (beach sand submerged sediments) 25.3%...
"Cork: properties, capabilities and applications." International Materials Reviews, 53(4), p. 256
An evaluation of cell proliferation and adhesion on biocompatible film supports was performed. A series films were compression molded from commercially available poly (L-lactide), PLLA, poly(epsilon-caprolactone), PCL, their melt mixed blends (PLLA/PCL blends). These compared with PLLA-b-PCL model diblock copolymers. The samples analyzed by differential scanning calorimetry (DSC), contact angle measurements, force microscopy (SFM). Cell performed monkey derived fibroblasts (VERO)...
The aim of this study was to evaluate the cytotoxic effect, degree conversion (% DC), Vickers hardness (VH), and surface morphology composite resins. Eleven resins, nine bulk-fill two conventional resins were evaluated. Each material sampled DC (using FTIR), VH, cytotoxicity MTT Neutral Red - NR test), SEM AFM), organic filler EDS). All statistical tests performed with SPSS level significance set at 0.05. revealed that materials presented low or no potential in relation control. Opus resin...
Protein-based porous absorbent structures can be processed and assembled into configurations suitable for single-use, biodegradable sanitary materials. In this work, a formulation based on mixture of proteins available as industrial coproducts is continuous using extrusion conventional thermal methods. The experimental design led to formulations solely zein-gluten protein bioblends that could manufactured liquid pellets, compressed pads, and/or films. processing versatility attributed the...