A5100342136- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Advanced biosensing and bioanalysis techniques
- Biosensors and Analytical Detection
- Advanced Chemical Sensor Technologies
- Semiconductor materials and devices
- Analytical Methods in Pharmaceuticals
- Enzyme Catalysis and Immobilization
- Advanced Photocatalysis Techniques
- Metal and Thin Film Mechanics
- Biodiesel Production and Applications
- Cardiac Structural Anomalies and Repair
- Polyoxometalates: Synthesis and Applications
- Diamond and Carbon-based Materials Research
- Mechanical Circulatory Support Devices
- Advanced oxidation water treatment
- Transplantation: Methods and Outcomes
- Microbial Metabolic Engineering and Bioproduction
- Healthcare Regulation
- Nanocomposite Films for Food Packaging
- Robotics and Automated Systems
- Antibiotics Pharmacokinetics and Efficacy
- Pharmacological Effects and Assays
Hospital do Desterro
2025
Hospital CUF Descobertas
2025
Universidade Federal de Viçosa
2021-2024
Universidade Federal do Rio Grande do Norte
2024
Universidade Federal de São Carlos
2013-2023
Federal Center for Technological Education of Minas Gerais
2019-2022
University of Miami
2021-2022
Udaipur Solar Observatory
2022
International Foundation for Electoral Systems
2022
Instituto Federal do Espírito Santo
2022
This report describes a method to fabricate high-surface-area boron-doped diamond (BDD) electrodes using so-called 'black silicon' (bSi) as substrate. is synthetic nanostructured material that contains high-aspect-ratio nano-protrusions, such spikes or needles, on the Si surface produced via plasma etching. We now show coating bSi composed of 15 μm-high needles conformably with BDD produces robust electrochemical electrode high sensitivity and electroactive area. A clinically relevant...
A disposable microfluidic electrochemical paper-based device for multiplexed analysis based on sixteen independent channels with detection is proposed. major advantage of this work was the non-necessary use a wax printer devices manufacturing which has high cost operation. In addition, commercial multiplexing module used that capability 8-16 and, first time using module, strategy both working and reference electrodes were used. These respective sensors can be operated employing one or...
The digital image analysis together with spot-test based on a colorimetric assay produces fast, low waste, screening and<italic>in situ</italic>analysis.
A simple and highly selective electrochemical method was developed for the single or simultaneous determination of dopamine (DA) epinephrine (EP) in human body fluids using a glassy carbon electrode modified with nickel oxide nanoparticles nanotubes within dihexadecylphosphate film square-wave voltammetry (SWV) differential-pulse (DPV). Using DPV proposed electrode, separation ca. 360 mV between peak reduction potentials DA EP present binary mixtures obtained. The analytical curves showed an...
A low-cost and disposable microcell was constructed with a screen-printed electrode for the non-enzymatic electrochemical determination of creatinine. The working modified carbon black maintained in contact paper-adsorbed iron (III) ions. small sample volume 3 μL required device operation. Then, ions were complexed presence creatinine chemical step, followed by an reduction non-complexed metallic excess. Cyclic voltammetry differential-pulse experiments employed characterizations analytical...
Abstract A disposable electrochemical paper‐based analytical device was constructed based on use of sequential analysis with multiplexed working electrodes and applied for the determination glucose, creatinine, uric acid. The 16 microfluidic channels, arranged in four set components surrounding sample injection hole. In addition, a commercial multiplexing module used, which allowed electrodes. This design radial homogeneous elution to each sensing spot high throughput analysis....
Porous diamond-like carbon (DLC) electrodes have been prepared, and their electrochemical performance was explored. For electrode preparation, a thin DLC film deposited onto densely packed forest of highly porous, vertically aligned multiwalled nanotubes (VACNT). deposition caused the tips to clump together form microstructured surface with an enlarged area. DLC:VACNT show fast charge transfer, which is promising for several applications, including electroanalysis. were applied determination...