Diogo Duarte dos Reis

The use of microcontrollers and digital fabrication to investigate Ampere’s Law

A M B Goncalves, Kemylli F S Mendes, Pericles S Bispo, Diogo Duarte dos Reis

Abstract In this manuscript, we introduce a novel device that computes the magnetic field along the path as a function of the path. This device, comprising 3D-printed parts: a magnetometer and a wheel with an optical encoder connected to a microcontroller that …

Toothpastes and Enamel Erosion Control - Impact of Active Ingredients Based on Calcium and Phosphate

Lucas Moura de Oliveira, Edílson José Zafalon, Diogo Duarte dos Reis, A M B Goncalves et autres

ABSTRACT Objective: To evaluate the effect of toothpastes with active principles based on calcium and phosphate on human dental enamel submitted to the erosion cycle. Material and Methods: Enamel fragments were divided into 6 groups (n=10): Control (CTRL), Bianco pro-clinical (BIAN), Biomin …

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Exploring a low-compatibility population of Biomphalaria glabrata (Mollusca: Gastropoda) as a model for studying host-parasite interactions with Schistosoma mansoni (Trematoda: Digenea)

Marina de Moraes Mourão, Vitor do Espirito Santo Pimentel, Andréa Teixeira‐Carvalho, Diogo Duarte dos Reis et autres

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Niobium-Decorated Multiwalled Carbon Nanotubes for Voltammetric Detection of Paracetamol

Rafael Henrique de Oliveira, Monize M. da Silva, Cláudio Teodoro de Carvalho, Daniel A. Gonçalves et autres

Abstract This study investigates the synthesis and characterization of a nanostructured sensor based on multiwalled carbon nanotubes (MWCNTs) decorated with niobium oxide (Nb2O5) nanoparticles. The MWCNT-Nb2O5 composite was synthesized using a chemical method that ensured a homogeneous distribution of Nb2O5 on the …

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Atomic and electronic structure of vicinal Ag(977) surface

Clóvis Güerim Vieira, Willians P. Fernandes, Diogo Duarte dos Reis, V. E. de Carvalho et autres

We conducted a detailed experimental investigation of the Ag(977) vicinal surface, a high Miller index surface derived from the (111) surface. The sample surface was prepared using standard methodology and its quality was examined by x-ray photoelectron spectroscopy, low energy electron diffraction …

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Surface structure of Sn doped β-Ga2O3(010) p(1×1) studied by quantitative low energy electron diffraction

A. Pancotti, Diogo Duarte dos Reis, Jerzy T. Sadowski, Alex Sandre Kilian et autres

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Assessing the Impact of Phase-Change Materials on Enhancing the Thermal Efficiency of Buildings in Tropical Climates

Tássio Luiz dos Santos, Arthur Santos Silva, Diogo Duarte dos Reis

Civil construction and buildings account for a significant 36% of worldwide energy consumption, contributing to 37% of global CO2 emissions. In Brazil, buildings consume a substantial 51.2% of the nation’s electricity production. Remarkably, approximately one-third of this energy is allocated specifically for …

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Crumpled graphene fully decorated with nickel-based nanoparticles applied in glyphosate detection

Daniel A. Gonçalves, Vitor H. N. Martins, Diogo Duarte dos Reis, Monize M. da Silva et autres

cations showcased the superior performance of the Ni:CG electrochemical sensor. The synthesis of crumpled graphene-/nickel-based composites offers a promising avenue for the future of on-site glyphosate detection, presenting a robust and efficient solution to environmental challenges.

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TiO2/MWCNT/Nafion-Modified Glassy Carbon Electrode as a Sensitive Voltammetric Sensor for the Determination of Hydrogen Peroxide

Rafael Henrique de Oliveira, Daniel A. Gonçalves, Diogo Duarte dos Reis

In this work we describe a straightforward approach for creating a nanocomposite comprising multiwalled carbon nanotubes (MWCNTs) and titanium dioxide (TiO2) using the hydrothermal technique, which is then characterized by scanning electron microscope (SEM), energy-dispersive X-ray spectrometer (EDS), X-ray diffraction analysis (XRD), …

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Electro-oxidation of glycerol over Sb-modified Pt (1 0 0) preferentially oriented nanoparticles

Dênis S. Ferreira, Ana C. Gaiotti, Herbert R. Araujo, Bruno C. Batista et autres

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Caracterização mineralógica, físico-química e tecnológica da argila de Angélica (Brasil): Adequação para aplicação em produtos de construção

Rafael Henrique de Oliveira, Cícero Rafael Cena da Silva, D. Araújo, Diogo Duarte dos Reis

Neste trabalho, a argila localizada no município de Angélica, região centro oeste do Brasil, foi coletada e investigada quanto às suas características físicas, químicas, mineralógicas e de queima para avaliar sua potencial adequação em diversas aplicações cerâmicas.As propriedades químicas, mineralógicas e térmicas …

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Interference and diffraction experiment using 3D printing and Arduino

Phelipe Paixao, V M C Remonatto, Lisiane Barcellos Calheiro, Diogo Duarte dos Reis et autres

Abstract Here, we present a 3D printed experimental apparatus that students can use to acquire interference and diffraction quantitative data from light passing through a single or double-slit experiment. We built a linear screw stage with a multiturn potentiometer connected to its …

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