Steffane Q. Nascimento

ORCID: 0000-0002-5869-010X
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About
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Research Areas
  • Electrochemical sensors and biosensors
  • Biosensors and Analytical Detection
  • Advanced biosensing and bioanalysis techniques
  • SARS-CoV-2 detection and testing
  • Electrochemical Analysis and Applications
  • Electrocatalysts for Energy Conversion
  • Advanced battery technologies research
  • Conducting polymers and applications
  • Graphene and Nanomaterials Applications
  • Carbon Nanotubes in Composites
  • Cholinesterase and Neurodegenerative Diseases
  • Semiconductor materials and devices
  • Advanced Nanomaterials in Catalysis
  • Metalloenzymes and iron-sulfur proteins
  • Photochromic and Fluorescence Chemistry
  • ZnO doping and properties
  • Spectroscopy and Quantum Chemical Studies
  • Nanoparticle-Based Drug Delivery
  • Copper-based nanomaterials and applications
  • Photosynthetic Processes and Mechanisms
  • Nanomaterials for catalytic reactions

Hospital Universitário da Universidade de São Paulo
2025

Universidade Federal de São Carlos
2022-2024

Universidade de São Paulo
2022-2024

Universidade Federal do Piauí
2019-2023

Abstract Protein structure plays an essential role on their stability, functionality, and catalytic activity. In this work, the interplay between β ‐sheet its implications to design of enzyme‐inspired materials is investigated. Here, inspiration drawn from active sites rich highly efficient multicopper oxidase (MCO) engineer a bio‐inspired electrocatalyst for water oxidation utilizing abundant metal, copper. Copper ions are coordinated poly‐histidine (polyCuHis), as they in MCO sites. The...

10.1002/advs.202402234 article EN cc-by Advanced Science 2024-04-17

The COVID-19 pandemic has highlighted the critical need for scalable, rapid, and cost-effective diagnostic solutions, especially in resource-limited settings. In this study, we developed a sustainable magnetic electrochemical biosensor mass testing of SARS-CoV-2, emphasizing affordability, environmental impact reduction, clinical applicability. By leveraging recycled materials from spent batteries plastics, achieved circular economy-based fabrication process with recyclability rate 98.5%....

10.1021/acssensors.4c03175 article EN cc-by ACS Sensors 2025-03-14

SacCoMyo, an engineered artificial enzyme with a hydroxocobalamin core and protective heteropolysaccharide-linked shell, exhibits resilience in acidic electrolytes containing molecular oxygen, reducing the activation overpotential for hydrogen generation demonstrating high turnover frequency.

10.1039/d3cc06185j article EN Chemical Communications 2024-01-01

We report the study on formation of Cu2[Fe(CN)6] nanocomposite, which was obtained from copper oxide nanoparticles (CuO NPs) and Prussian Blue precursors. UV-vis analysis indicated that Cu2+ ions are released CuO NPs, while Fe3+ adsorbed onto structure due to a sharp increase in zeta potential (from -30 0 mV) after Cu2[Fe(CN)6]. Moreover, energy dispersive spectroscopy confirmed trapped NPs structure. The CuO/Cu2[Fe(CN)6] nanocomposite exhibited monoclinic face-centered cubic phases...

10.1590/0001-3765202020191442 article EN cc-by Anais da Academia Brasileira de Ciências 2020-01-01

The ongoing COVID-19 pandemic continues to have a significant impact on our daily lives, necessitating the rapid development of early diagnostic tools mitigate emergence severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreaks. In this context, biosensor technology has emerged as highly promising strategy address challenges low sensitivity, specificity, and high cost associated with clinical diagnosis. study, we present novel cost-effective approach for detection SARS-CoV-2...

10.1016/j.biosx.2024.100472 article EN cc-by-nc-nd Biosensors and Bioelectronics X 2024-03-30

For a long time, the prevailing view in scientific community was that proteins, being complex macromolecules composed of amino acid chains linked by peptide bonds, adopt folded structure with insulating or semiconducting properties, high bandgaps. However, recent discoveries unexpectedly conductance levels, reaching values range dozens nanosiemens (nS) have challenged this conventional understanding. In study, we used scanning tunneling microscopy (STM) to explore single-entity properties...

10.1021/acs.jpclett.4c01796 article EN cc-by The Journal of Physical Chemistry Letters 2024-10-21
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