A5060574827- Electrochemical sensors and biosensors
- Advanced biosensing and bioanalysis techniques
- SARS-CoV-2 detection and testing
- Molecular Junctions and Nanostructures
- Electrochemical Analysis and Applications
- Graphene research and applications
- Biosensors and Analytical Detection
- Conducting polymers and applications
- Advanced Chemical Sensor Technologies
- SARS-CoV-2 and COVID-19 Research
- Biotechnology and Related Fields
- Graphene and Nanomaterials Applications
- Analytical Chemistry and Sensors
- Biomedical and Engineering Education
- Clinical Laboratory Practices and Quality Control
- Renal function and acid-base balance
- Supercapacitor Materials and Fabrication
- Molecular Communication and Nanonetworks
- Metabolomics and Mass Spectrometry Studies
- Advanced Memory and Neural Computing
Ospedale Papa Giovanni XXIII
2024
Universidade de São Paulo
2019-2023
Universidade Federal de São Carlos
2022-2023
Instituto de Psicologia Comportamental de São Carlos
2019
Electrochemical oxidation of a graphene monolayer results in G-band shift the micro-Raman spectrum and an increase quantum capacitance, resulting from number density defects charge carrier concentration structure.
A screen-printed electrode (SPGPUE) was prepared with graphite-polyurethane composite ink containing gold nanoparticles (AuNPs), resulting in a modified (SPGPUE-AuNPs). Gold were by the citrate method and extracted from water medium since polyurethane is not compatible humidity. After extraction to chloroform, they characterized via transmission electron microscopy (TEM). The presence of on SPGPUE-AuNP surface confirmed SEM EDX analyses, while thermogravimetry revealed approximately 3.0%...
The COVID-19 pandemic outbreak made the development of reliable, sensitive, and reproducible testing methods crucial throughout world. Without proper analytical validation, results can be misinterpreted, leading to a certain degree misinformation in clinical area. To accurately assess methods, determination an linear range response assay is fundamental. Based on this curve, evaluation some parameters as sensitivity, limit detection, quantification done, well establishment cut-off values....
Abstract Pristine graphene electrodes exhibit slow vertical (off‐plane) heterogeneous electron transfer (HET) rate that limits their application in electrochemical devices. This can be minimized by generating defects the structure. However, these adversely affect horizontal (in‐plane) electrical conductivity characteristic to graphene. Here, fabrication of bilayer devices with modulated HET is reported. Strategically, upper sheet used as a sacrificial layer for introduction extrinsic via...
A graphite-polyurethane composite electrode (GPUE) was modified by electrodeposition of copper nanoparticles (CuNP) followed electrochemical treatment in NaOH (GPUE-CuNP), order to prepare an amperometric sensor for the determination cysteine (Cys).Cyclic votammograms Cys solutions at GPUE-CuNP allowed description a sequence reactions involving oxidation and Cu 0 /Cu + equilibrium, generating stable Cys-Cu complex.The presence these confirmed scanning electron microscopy (SEM) energy...
<p>Graphene-based vertical electrodes may have applications in biomolecular recognition for producing low-cost biodevices with high electronic conductivity. However, they are unsuitable measuring small interfacial capacitance variations because graphene is mostly composed of basal sp<sup>2</sup> carbon surface, which limits its sensitivity as an electrochemical biosensor. Herein, we introduce unconventional device alternative based on a three-component vertically designed...
Graphene-based vertical electrodes may have applications in biomolecular recognition for producing low-cost biodevices with high electronic conductivity. However, they are unsuitable measuring small interfacial capacitance variations because graphene is mostly composed of basal sp 2 carbon surface, which limits its sensitivity as an electrochemical biosensor. Herein, we introduce unconventional device alternative based on a three-component vertically designed (TCVD) surface comprising...