A5027884498- biodegradable polymer synthesis and properties
- Polymer composites and self-healing
- Nanocomposite Films for Food Packaging
- Electrospun Nanofibers in Biomedical Applications
- Polymer Nanocomposites and Properties
- Bone Tissue Engineering Materials
- Corneal Surgery and Treatments
- Advanced Polymer Synthesis and Characterization
- Natural Fiber Reinforced Composites
- Dyeing and Modifying Textile Fibers
- Advanced Cellulose Research Studies
- Polysaccharides and Plant Cell Walls
- Silicone and Siloxane Chemistry
- Tissue Engineering and Regenerative Medicine
- Pigment Synthesis and Properties
- Photochromic and Fluorescence Chemistry
- Sustainable Design and Development
- Postharvest Quality and Shelf Life Management
- Bamboo properties and applications
- Protease and Inhibitor Mechanisms
- Building materials and conservation
- Polysaccharides Composition and Applications
- Retinal Development and Disorders
- Polymer crystallization and properties
- Advanced Sensor and Energy Harvesting Materials
Universidade do Estado de Minas Gerais
2015-2025
Fundação Getulio Vargas
2021
National Institute of Science and Technology in Regenerative Medicine
2021
Universidade Federal de Ouro Preto
2017
Universidade Federal de Minas Gerais
2005-2012
In the present study, PHB film was prepared by thermo-compression molding and nanofibers mat produced through electrospinning process. The morphology confirmed SEM. crystallinity degree estimated different methods. FTIR WAXD indicated that is more crystalline than nanofibers. However, DSC analysis suggested a phase change might occur while temperature rises. SAXS have low electron density contrast between alternating amorphous layers. influence of nanofiber on mechanical, surface thermal...
A porous biodegradable polyurethane nanocomposite based on poly(caprolactone) (PCL) and nanocomponents derived from montmorillonite (Cloisite®30B) was synthesized tested to produce information regarding its potential use as a scaffold for tissue engineering. Structural morphological characteristics of this were studied by infrared spectroscopy (FTIR), X-ray diffraction (XRD), small angle scattering (SAXS) scanning electron microscopy (SEM). The reaction between oligomers with isocyanate...
Summary Okra ( Abelmoschus esculentus ) is a perishable fruit with an extremely short post‐harvesting period. In the present study we have investigated development of edible films obtained from mucilage rejected okra fruits. The was characterized by FTIR, percentage yield, swelling index in water, solubility XRD, TGA and DSC. curve has showed that good thermal stability low moisture content, which demonstrated initial mass loss. Edible were prepared two concentrations (1% 1.5% w/v) combined...
Abstract Brazil is the leading orange juice producer worldwide. Only about 50% of an juice, so enormous amount waste generated annually. In this context, studies involving alternatives for remaining isn't wasted or sent to landfill are issue responsibility. present work pectin extracted obtaining a film‐forming solution. The classified as high ester pectin, since its degree esterification higher than 50%. solution gives rise transparent films with low yellowing index. addition CaCl 2...
A cadeia produtiva do açaí (Euterpe oleracea Mart.) é uma das mais importantes para a região Norte Brasil. Entretanto, alta produção de resíduos derivados processamento industrial responsável por problemas ambientais, sociais e econômicos nas principais cidades da região. Dessa maneira, o artigo relata as possibilidades aproveitamento dos desenvolvimento materiais compósitos com Poliácido lático (PLA). Quanto aos procedimentos metodológicos, presente pesquisa caracterizada como exploratória....
The treatment of posterior segment ocular diseases, such as uveitis, by using eye drops and oral drugs is usually not effective due to the body's natural barriers drug penetration. In this study, implants treat uveitis were synthesized incorporating dexamethasone acetate, an important type corticoid used in some into a biodegradable polyurethane containi clay nanoparticles. Biodegradable nanocomposites having poly(caprolactone) oligomers soft segments obtained delaminating particles within...
Targeted drug delivery to the ocular tissues remains a challenge. Biodegradable intraocular implants allow prolonged controlled release of drugs directly into eye. In this study, we evaluated an anterior suprachoroidal polyurethane implant containing dexamethasone dispersions (DX-PUD) as system in rat model endotoxin-induced uveitis (EIU).In vitro was studied using PUD 8%, 20%, and 30% (wt/wt) DX. Cytotoxicity degradation products DX-PUD assessed on human ARPE-19 cells...
Biodegradable polyurethane was synthesized by preparing aqueous dispersion having poly(caprolactone) and poly(ethylene glycol) as soft segments. Montmorillonite particles were delaminated within the waterborne to produce a nanocomposite. The triamcinolone acetonide (TA), an important corticoid drug, dispersed into nanocomposite followed drying step implantable drug delivery system. Infrared (FTIR) results demonstrated that original chemical structure of TA preserved after incorporation Wide...
Polyurethanes and polyurethane nanocomposites can be applied to control the release of drugs previously incorporated into these materials. In this study, dexamethasone acetate (ACT) was biodegradable biocompatible containing montmorillonite nanoparticles. Fourier transform infrared spectroscopic technique showed no strong interactions between drug polymers. Data obtained from X-ray diffraction small angle scattering indicated that incorporation ACT did not disturb polymer morphology, but led...
Bamboo is an alternative sustainable material for use in product design and has been incorporated into the concepts of eco-design. Here, we investigated mechanical properties morphologies low density polyethylene (LDPE)/bamboo flour (BF) composites that were modified with polyethylene-graft-maleic anhydride (PE-g-MA) glycerol. Scanning electron microscopy (SEM) tensile tests demonstrated poor adhesion between filler matrix. Contact angle measurement showed surface LDPE was by presence load....