A5054101647- biodegradable polymer synthesis and properties
- Electrospun Nanofibers in Biomedical Applications
- Advanced Cellulose Research Studies
- Polymer Nanocomposites and Properties
- Microplastics and Plastic Pollution
- Polymer crystallization and properties
- Nanocomposite Films for Food Packaging
- Natural Fiber Reinforced Composites
- Lignin and Wood Chemistry
- Bone Tissue Engineering Materials
- Carbon Nanotubes in Composites
- Additive Manufacturing and 3D Printing Technologies
- Conducting polymers and applications
- Polysaccharides and Plant Cell Walls
- Graphene and Nanomaterials Applications
- Fiber-reinforced polymer composites
- Advanced Sensor and Energy Harvesting Materials
- Biofuel production and bioconversion
- Catalysis for Biomass Conversion
- Polymer Science and PVC
- Polymer Nanocomposite Synthesis and Irradiation
- Recycling and Waste Management Techniques
- Airway Management and Intubation Techniques
- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
Universidade Federal de São Paulo
2015-2024
Union des Industries Ferroviaires Européennes
2017-2022
Universidade Estadual de Campinas (UNICAMP)
2010-2019
Institute of Engineering Science
2016
Shanghai Institute for Science of Science
2016
Institute of Science and Technology
2016
Federal Institute of São Paulo
2013
ABSTRACT Poly(lactic acid) (PLA) is a biodegradable aliphatic polymer obtained from renewable sources; its main application in the packaging sector. Electronic components require use of antistatic that prevents damage and electric shock. As PLA has no conductive characteristics, it requires addition allotropic carbon forms such as black to make less resistive dissipative material making suitable for manufacture packaging. In this study, was melt blended with 5, 10, 15 wt % black. The...
Cellulose nanocrystals appeared as important bio-based products and the collected information in term of production, characterization application suggest that this nanomaterial could be easily extrapolated to bioethanol production.This review describes recent published syntheses using chemical enzymatic hydrolyses different preparations such high pressure homogenization.Their industrial medical applications, controled delivery carriers, a large projection nanomaterial.The most aspect data is...
The production of poly(lactic acid) (PLA) biodegradable blends with other biopolymers, such as poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), and the introduction carbon nanotubes (CNT) are promising solutions for electrical electromagnetic application.PHBV has a great potential to improve processing toughness PLA.The addition CNT contributes properties polymeric nanocomposites.PLA/PHBV blend (80/20) PLA/PHBV blend-based nanocomposites 0.5 1.0 wt% were produced.Morphology images showed...
Acute myocardial infarction (AMI) is the main cause of death worldwide, and time diagnosis decisive for effectiveness treatment patients with AMI. Creatine kinase-myocardial band (CK-MB) has a predominance high affinity tissue, making it considered one biomarkers In this work, we report novel biodegradable composite material based on polymer blend Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Poly(butylene adipate-co-terephthalate) (PHBV:Ecoflex) graphite microparticles sensitive selective...
A biodegradable polymer composite containing lignin from sugarcane bagasse and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was produced characterized in terms of its thermal, morphological, mechanical properties. For comparison with the properties composites, isolated components (lignin PHBV) were also determined. The characterizations carried out by Fourier transformed infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), electron...
A compatibilizer agent was successfully produced by grafting maleic anhydride (MA) to poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) chains on a reactive processing mechanical mixing, using mixture of PHBV, MA and dicumyl peroxide (DCP) as initiator. The resulting PHBV grafted (PHBV-g-MA) characterized Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) gel permeation chromatography (GPC), its properties were compared...
Abstract Tissue engineering has directed a lot of effort toward the development devices with suitable biocompatibility and mechanical properties. Chitosan been pointed as valuable material to be applied in scaffolds due its antimicrobial activity biocompatibility. Nevertheless, low resistance associated requirement toxic crosslinkers hampered translational application chitosan hydrogel. Herein, use gold nanoparticles (AuNP) crosslinker is reported great strategy obtain hydrogel without using...
Super hydrophilic scaffolds of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) with 3 wt % acetylated (CNC-Ac) and PEGylated (CNC-PEG) cellulose nanocrystals (CNC) were prepared. PHBV, PHBV/CNC-Ac, PHBV/CNC-PEG characterized respect to their morphology by scanning electron microscopy (SEM) X-ray microtomography. The crystallinity was evaluated differential calorimetry (DSC) the mechanical properties uniaxial compression tests. presence residual solvent identified gas chromatography (GC),...
Antistatic packaging is a very important sector since the electrostatic discharge of electronic devices can damage and/or disable these products. In addition, it essential to dispose this correctly. work, synergistic effect addition lignin and carbon black on development antistatic biodegradable was verified. study, PLA mixed with composites were prepared using high-speed thermokinetic homogenizer where melting blend fillers occurred by friction. The characterized Izod impact tests, scanning...
Porous polymeric scaffolds provide a physical substrate for cells to attach and proliferate, allowing the formation of new tissue.These materials are broadly used in tissue engineering field due their ability mimic native tissue.Each application requires specific morphologies resistance, among other several features.To accomplish these requirements, various techniques available, each one with its advantages disadvantages.Among most relevant salt leaching, solvent casting, gas foaming,...
Abstract One of the most important challenges in tissue engineering research is development biomimetic materials. In this present study, we have investigated effect titanium dioxide (TiO 2 ) nanoparticles on properties electrospun mats poly (hydroxybutyrate‐ co ‐3‐hydroxyvalerate) (PHBV), to be used as scaffold. The morphology fibers was observed by scanning electron microscopy (SEM). Both pure PHBV and nanocomposites were smooth uniform. However, there an increase fiber diameter with TiO...
In this work, chitosan hydrogels crosslinked with genipin and reinforced cellulose nanocrystals (CNC) were developed characterized the aim of future biomedical applications. CNC was produced by acid hydrolysis atomic force microscopy (AFM). Chitosan/CNC nanocomposite different concentrations (w/w): 0%, 2%, 4%, 6%. The used as a crosslinking agent in genipin/chitosan molar proportion 1:8. porosity measurements, scanning electron (SEM), swelling test, mechanical compression test. No...