- Graphene research and applications
- Electrochemical sensors and biosensors
- Advanced Memory and Neural Computing
- Analytical Chemistry and Sensors
- Lignin and Wood Chemistry
- Advanced biosensing and bioanalysis techniques
- Biochemical and biochemical processes
- Enzyme Catalysis and Immobilization
- Advanced Sensor and Energy Harvesting Materials
- Semiconductor materials and devices
- Thermochemical Biomass Conversion Processes
- Conducting polymers and applications
- Electrochemical Analysis and Applications
Instituto Nacional de Metrologia, Qualidade e Tecnologia
2020-2022
Universidade Federal do Rio de Janeiro
2021
In this work, the electrical properties of graphene papers were investigated with aim developing pressure sensor prototypes for measuring pressures up to 2 kPa. order determine which paper would be most suitable, three different types papers, synthesized by routes, prepared and electrically characterized. The results characterizations, in terms conductivity sheet resistance are presented discussed. Prototypes sensors proposed, using obtained chemical oxidation (graphene oxide reduced oxide)...
The use of enzymes as catalysts requires recovery and reuse to make the process viable. Enzymatic immobilization changes enzyme stability, activity, specificity. It is very important explore new substrates for with appropriate composition structure improve efficiency immobilized enzymes. This work explores two different graphene oxide papers, one produced by oxidation route (GO) other electrochemical synthesis (EG), aiming β-galactosidase immobilization. chemical structural properties these...