A5048392530- biodegradable polymer synthesis and properties
- Polymer-Based Agricultural Enhancements
- Phase Equilibria and Thermodynamics
- Nanocomposite Films for Food Packaging
- Advanced Polymer Synthesis and Characterization
- Natural Fiber Reinforced Composites
- Electrospun Nanofibers in Biomedical Applications
- Advancements in Transdermal Drug Delivery
- Solar Thermal and Photovoltaic Systems
- Fiber-reinforced polymer composites
- Phosphorus and nutrient management
- Protein purification and stability
- Polymer composites and self-healing
- Thermodynamic properties of mixtures
- Carbon dioxide utilization in catalysis
- Solar-Powered Water Purification Methods
- Cannabis and Cannabinoid Research
- Chemical Thermodynamics and Molecular Structure
- Granular flow and fluidized beds
- Additive Manufacturing and 3D Printing Technologies
- Polymer Nanocomposites and Properties
- Polymer Foaming and Composites
- Phytochemistry and biological activity of medicinal plants
- Sleep and Wakefulness Research
- Porphyrin and Phthalocyanine Chemistry
Universidade Federal da Bahia
2015-2024
Weatherford College
2023
Universidade Federal de Santa Catarina
2023
Serviço Nacional de Aprendizagem Industrial
2023
Mathematics Research Center
2023
Hospital Ana Nery
2019-2020
Fertilizers contain essential nutrients for agricultural growth and development. However, most nitrogen fertilizers are substances with high solubility of ions very susceptible to leaching volatilization. To minimize these losses, an alternative is the creation a physical barrier around granules. One way coat granules polymers. In present work urea were coated polyhydroxybutyrate ethyl cellulose in various conditions presence emulsifiers. The original final products characterized by scanning...
The objective of the present work was to study incorporation starch nanoparticles (SNP) produced by ultrasound in blends poly(butylene adipate-co-terephthalate) (PBAT) and thermoplastic (TPS). films were extrusion using varying percentages SNP (1, 2, 3, 4, 5% w/w). prepared water without addition any chemical reagent. results revealed that treatment formation less than 100 nm size an amorphous character lower thermal stability low gelatinization temperature when compared with cassava starch....
Agro-industrial waste causes environmental impacts, and the use of new technologies materials emerge as minimization alternatives. This work aimed to extract characterize starch from avocado seeds for future applications. The grains were removed, extracted with a yield (19.54%), moisture (41.35%), ash (0.33%), titratable acidity (4.64%), lipids (1.68%), proteins (1.60%) carbohydrates (55.07%). water activity was 0.986 g/g, absorption index 0.333 oil capacity 0.691 solubility 0.888%....
The regeneration of skin injuries can be aided by tissue engineering strategies, which enable the recovery structural and functional integrity damaged tissue. Solution Blow Spinning (SBS) technique has attracted attention researchers due to production nanofiber mats in a continuous process, exhibit high porosity ability deliver drugs locally. objective this work was produce encapsulate ibuprofen PCL/PEG as fast-acting analgesic drug delivery system. Initially, beaded structures were produced...
The interest of the pharmaceutical industry in lipid drug delivery systems due to their prolonged release profile, biocompatibility, reduction side effects, and so on is already known. However, conventional methods preparation these structures for use production are difficult since usually multi-step involve high amount organic solvent. Furthermore, some processes need extreme conditions, which can lead an increase heterogeneity particle size degradation drug. An alternative system...
The main objective of the present study is to produce copolymers urea, acrylic acid, and glycerol through aqueous solution free‐radical polymerizations analyze structural, thermal, rheological, release properties obtained materials. To do this, copolymerizations were performed in different reaction conditions characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry, rheological analyses, thermogravimetry, gel permeation chromatography, rates urea distilled...
Cannabidiol (CBD), a major constituent of Cannabis sativa, has demonstrated broad range therapeutic properties in human studies. Notably, CBD shown anticancer activity preclinical cancer models. However, its low water solubility poses challenges for bioavailability, necessitating the development drug delivery systems to enhance efficacy. This study aimed create CBD-loaded Poly (butylene succinate) (PBS) nanoparticles and evaluate their effectiveness vitro The nanoparticles, with an average...
ABSTRACT This article describes using recycled gelatin in production of blends starch ( Manihot esculenta Crantz ). Films were produced by extrusion varying percentages (2.5, 5, 7.5, 10, 12.5, and 15% relative to the weight), plasticized with glycerol (20 wt % then characterized. The morphology results showed films a cohesive matrix no phase separation. crystallinity analysis that process eliminated crystalline zones granules low‐crystallinity films. addition caused an increased thermal...
Opioids have been used as the reference treatment on chronic pain. However, they are related to serious adverse effects which affect patient compliance treatment, well as, his quality of life. Particulate formulations investigated an alternative improve opioid efficacy and safety.Summarise available studies concerning micro nanoencapsulated discussing their biopharmaceutical characteristics, such composition, size, in vitro release, pharmacokinetic antinociceptive profile.Papers 1995-2015 at...
Abstract Chicken litter (CL) is a waste generated by poultry farming and it that has increased significantly in recent years. Due to chicken levels of nitrogen, potassium, phosphorus, other nutrients, the CL potential use as fertilizer, nevertheless, this purpose been threatened pollution water resources owing leaching disposal these nutrients. The production granular organomineral fertilizers (OMF) one way minimizing problems add value waste. Thus, study evaluates different binder materials...
This work aimed at the encapsulation of zinc phthalocyanine (ZnPc) in poly(thioether-ester) (PTEe) nanoparticles via thiol-ene miniemulsion polymerization using a biobased diene monomer and two different thiols as comonomers. ZnPc – PTEe presented an average diameter between 120 160 nm high efficiency for both thiols. The release profile from initial burst effect followed by slow rate. Studies cytotoxicity showed that protected erythrocytes against decreasing hemolytic damages. Moreover, low...
Latterly, the development of green synthesized polymeric nanoparticles with anticancer studies has been an emerging field in academia, and pharmaceutical chemical industry. Vegetable oils are potential substitutes for petroleum derivatives, as they present themselves a clean environmentally friendly alternative available high quantities at relatively low prices. Biomass-derived chemicals can be converted into monomers unique structures, generating materials new properties synthesis...
Abstract Increasing non-biodegradable plastic consumption is a great factor that contributes to worldwide pollution and global warming. Mechanochemistry provides clean, solvent-less, route for chemical reactions such as polymerization based on the absorption of mechanical energy. Urea polymers have several applications in industrial medical area, paints, resins, plastic, wood glue, separating aliphatic hydrocarbons, coating, pharmaceutical drugs. In this study, copolymer urea citric acid was...
The main aim of the present study is analysis structural, chemical, and thermal properties urea–succinic acid–ethylene glycol (U/SA/EG) acid–glycerol (U/SA/GLY) copolymers produced in aqueous solutions with different compositions. These materials find potential use agricultural applications. were characterized by Fourier transform infrared spectroscopy (ATR‐FTIR), matrix‐assisted laser desorption ionization process (MALDI TOF), nuclear magnetic resonance (NMR), gravimetric (TGA/DTG)....
The main objective of the present work is to produce and characterize urea granules coated with polymers prepared aqueous solutions acrylic acid glycerol. Both coating drying were performed in a fluidized bed reactor. Fourier transform infrared spectroscopy analyses indicated presence poly(acrylic acid) / glycerol copolymers on granule formation chemical bonds between polymer coating. Scanning electron microscopy images showed that original presented different characteristics, reinforcing...
Estudo comparativo entre as metodologias para realização