A5029889420- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Electrodeposition and Electroless Coatings
- Corrosion Behavior and Inhibition
- Analytical Chemistry and Sensors
- Ionic liquids properties and applications
- Electrocatalysts for Energy Conversion
- Analytical chemistry methods development
- Analytical Methods in Pharmaceuticals
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced battery technologies research
- Chemical and Physical Properties in Aqueous Solutions
- Concrete Corrosion and Durability
- Conducting polymers and applications
- Semiconductor materials and interfaces
- Advanced Photocatalysis Techniques
- Advanced biosensing and bioanalysis techniques
- Free Radicals and Antioxidants
- Advanced Chemical Sensor Technologies
- Recycling and Waste Management Techniques
- Pesticide Residue Analysis and Safety
- Pharmacological Effects and Assays
- Catalysis and Oxidation Reactions
- Nanoporous metals and alloys
- Catalytic Processes in Materials Science
Universidade Federal do Ceará
2016-2025
Utrecht University
2023
Universidade de Fortaleza
2016-2021
University of Minho
2015-2016
GTx (United States)
2011
Universidade Nova de Lisboa
2007
Universidade de São Paulo
1996-2003
Universidade Federal de São Carlos
2000
This study focused on the development of a sensitive enzymatic biosensor for determination pirimicarb pesticide based immobilization laccase composite carbon paste electrodes. Multi-walled nanotubes (MWCNTs) electrode modified by dispersion (3%, w/w) within optimum matrix (60:40%, w/w, MWCNTs and paraffin binder) showed best performance, with excellent electron transfer kinetic catalytic effects related to redox process substrate 4-aminophenol. No metal or anti-interference membrane was...
Chitosan-based magnetite nanocomposites were synthesized using a versatile ultrasound assisted in situ method involving one quick step. This synthetic route approach results the formation of spheroidal nanoparticles (Fe3O4) with average diameter between 10 and 24nm, which found to be superparamagnetic saturation magnetization (Ms) ranges from 32-57emug(-1), depending on concentration. The incorporation Fe3O4 into chitosan matrix was also confirmed by FTIR TG techniques. hybrid nanocomposite...
In recent years, new textile materials have been developed through the use of nanotechnology-based tools. The development surfaces with self-cleaning properties has a large combined potential to reduce environmental impact related pollution. this research work, three types textiles substrates (cotton, Entretela, and polylactic acid (PLA)) were functionalized titanium dioxide nanoparticles (TiO 2 ) using chemical mechanical processes (padding). During functionalization process, two different...
The influence of the boron-doping levels in boron-doped diamond film electrodes on electrochemical response nitrofurantoin (NFT) and development an electroanalytical procedure for NFT determination were investigated. investigations carried out using techniques cyclic voltammetry square wave with different (i.e., 5000, 10,000 20,000 mg L−1). level influenced reduction NFT. appropriate voltammetric was obtained Britton–Robinson buffer at pH 4 films doped L−1 boron. These two selected...
A simple and robust sensor (<italic>f</italic>MWCNT–Nafion®<sub>0.5%</sub>/GCE) for determination of imidacloprid, a widely used neonicotinoid, was developed using glassy carbon electrode (GCE) modified with functionalized multi-walled nanotubes (<italic>f</italic>MWCNT) Nafion®.