A5083776760- Corrosion Behavior and Inhibition
- Bone Tissue Engineering Materials
- Polymer composites and self-healing
- Concrete Corrosion and Durability
- biodegradable polymer synthesis and properties
- Conducting polymers and applications
- Electrospun Nanofibers in Biomedical Applications
- Lignin and Wood Chemistry
- Silicone and Siloxane Chemistry
- Orthopaedic implants and arthroplasty
- Graphene and Nanomaterials Applications
- Additive Manufacturing and 3D Printing Technologies
- Electrophoretic Deposition in Materials Science
- Wound Healing and Treatments
- Concrete and Cement Materials Research
- Dental Implant Techniques and Outcomes
- 3D Printing in Biomedical Research
- Polymer Nanocomposites and Properties
- Nanoparticles: synthesis and applications
- Synthetic Organic Chemistry Methods
- Anodic Oxide Films and Nanostructures
- Titanium Alloys Microstructure and Properties
- Materials Engineering and Processing
- Hemostasis and retained surgical items
- TiO2 Photocatalysis and Solar Cells
Universidade Federal de São Carlos
2020-2024
Materials Processing (United States)
2024
University of Central Florida
2023-2024
Universidade Estadual Paulista (Unesp)
2015-2022
Centro Universitário de Araraquara
2015-2022
Northeastern University
2018-2021
Universidade Federal do Piauí
2018
Environmentally compliant organic–inorganic hybrid coatings for efficient corrosion protection of metallic surfaces are potential alternatives to the current method based on chromate passivation.
Carbon nanotubes (CNTs) and graphene oxide (GO) have been used to reinforce PMMA-siloxane-silica nanocomposites considered be promising candidates for environmentally compliant anticorrosive coatings. The organic-inorganic hybrids were prepared by benzoyl peroxide (BPO)-induced polymerization of methyl methacrylate (MMA) covalently bonded through 3-(trimethoxysilyl)propyl (MPTS) silica domains formed hydrolytic condensation tetraethoxysilane (TEOS). Single-walled carbon nanosheets dispersed...
Novel environmentally compliant Ce(<sc>iv</sc>) doped siloxane–PMMA coatings exhibiting dense cross-linked structure, high thermal stability, unique anticorrosive performance and self-healing ability.
Abstract Depending on its composition, thermoplastic polyurethane (TPU)/polycaprolactone (PCL) blend may present interesting properties for biomedical applications. Here, we have extensively developed and characterized blends of TPU/PCL composites with 5, 10, 20 wt% hydroxyapatite (HA). The thermal, rheological, mechanical characterizations showed that the an intermediate behavior between pure TPU PCL. 75TPU/25PCL exhibited best shape memory performance at temperatures below 50 °C. Filaments...
Bioactive and biodegradable scaffolds that mimic the natural extracellular matrix of bone serve as temporary structures to guide new tissue growth. In this study, 3D-printed composed poly (lactic acid) (PLA)-tricalcium phosphate (TCP) (90-10 wt.%) were modified with 1%, 5%, 10 wt.% ZnO enhance regeneration. A commercial chain extender named Joncryl was incorporated alongside ensure printability composites. Filaments manufactured using a twin-screw extruder subsequently used print 3D via...
In this work, structural and active corrosion inhibition effects induced by lithium ion addition in organic-inorganic coatings based on poly(methyl methacrylate) (PMMA)-silica sol-gel have been investigated. The of increasing amounts carbonate (0, 500, 1000, 2000 ppm), yielded homogeneous hybrid with increased connectivity nanometric silica cross-link nodes, covalently linked to the PMMA matrix, improved adhesion aluminum substrate (AA7075). Electrochemical impedance spectroscopy (EIS),...
Abstract The incorporation of bioactive β‐tricalcium phosphate (TCP) into poly (ε‐polycaprolactone) (PCL) originates a composite biomaterial with required properties for variety biomedical application. We manufactured composites PCL/TCP by melt compounding and assessed their rheological, structural, thermal behavior, envisioning the use as filaments additive manufacturing via fused filament fabrication (FFF). Biocomposites PCL 5 wt% 10 TCP presented similar stability, crystallinity,...
Abstract The engineering of multifunctional surgical bactericidal nanofibers with inherent suitable mechanical and biological properties, through facile cheap fabrication technology, is a great challenge. Moreover, hernia, which when organ pushed an opening in the muscle or adjacent tissue due to damage structure function, dire clinical challenge that currently needs surgery for recovery. Nevertheless, post-surgical hernia complications, like infection, fibrosis, adhesions, scaffold...
In the absence of preventive maintenance, corrosion structural steel by deterioration passive layer due to exposure aggressive environments is main failure factor reinforced concrete. To overcome economic, safety, and environmental implications, present research efforts focus on eco-friendly organic–inorganic hybrid coatings achieve effective protection reinforcing steel. Nanostructured PMMA (poly(methyl methacrylate))–silica developed combining reactions polymerization methyl methacrylate...
Herein, we report the design of electrospun ultrathin fibers based on combination three different polymers polycaprolactone (PCL), polyethylene glycol (PEG), and gelatin methacryloyl (GelMA), their potential bactericidal activity against bacteria Staphylococcus aureus (S. aureus), Pseudomonas aeruginosa (P. aeruginosa), Methicillin-resistant (MRSA). We evaluated morphology, chemical structure wettability before after UV photocrosslinking produced scaffolds. Results showed that developed...
Abstract The aim of this study was to develop innovative bioactive and bactericidal composites by enhancing the biodegradable Ecovio® blend, composed poly(butylene adipate‐co‐terephthalate) (PBAT) poly(lactic acid) (PLA), with hydroxyapatite (HA) an amino‐functionalized tannin derivative (TN) envisioning biomedical applications. Initially, TN purification optimized maximize yield without compromising quality. Biocomposites were then prepared via melt‐compounding using fixed proportions each...