Zirconium oxide and niobium oxide used as radiopacifiers in a calcium silicate-based material stimulate fibroblast proliferation and collagen formation Abstract: Aim To evaluate the influence of the addition of microparticulate (micro) and nanoparticulate (nano) zirconium […]
Ludo Educativo lança novo jogo: “Quem Come o Quê” O Portal Ludo Educativo acaba de lançar o novo jogo “Quem Come O Quê”, cujo objetivo é que o aluno monte várias teias alimentares diferentes, seguindo […]
Microwave-assisted synthesis of anatase-TiO2 nanoparticles with catalytic activity in oxygen reduction Abstract: Anatase titanium dioxide nanoparticles were synthesized via fast microwave-hydrothermal route and they were characterized by BET, SEM, XRD and EIS. The synthesis process took barely 20 s, which […]
In situ microwave-enhanced electrochemical reactions at stainless steel: Nano-iron for aqueous pollutant degradation Abstract: Iron nanoparticle deposition and stripping are observed from aqueous Fe2 + solution at pH 3 on stainless electrodes in the presence of focused microwave activation. The effects of […]
Electrostatic immobilization of antimicrobial peptides on polyethylenimine and their antibacterial effect against Staphylococcus epidermidis Abstract: Staphylococcus epidermidis is a gram-positive bacterium, and one of the most prevalent causes of nosocomial infections due to its strong […]
Structural and electronic analysis of the atomic scale nucleation of Ag on alpha-Ag2WO4 induced by electron irradiation Abstract: In this work, we utilise a combination of theory, computation and experiments to understand the early events related […]
Oxidative Stress Status and Placental Implications in Diabetic Rats Undergoing Swimming Exercise After Embryonic Implantation Abstract: The potential benefits and risks of physical exercise on fetal development during pregnancy remain unclear. The aim was to analyze […]
Ozone and nitrogen dioxide gas sensor based on a nanostructured SrTi0.85Fe0.15O3 thin film Abstract: In this manuscript, we report an investigation into the sensitivity of two oxidizing gases (ozone and nitrogen dioxide) for nanocrystalline SrTi0.85Fe0.15O3 thin […]
New application for the BiVO4 photoanode: A photoelectroanalytical sensor for nitrite Abstract: A simple and sensitive photoelectrochemical sensor based on the bismuth vanadate (BiVO4) photoanode coupled to visible light excitation was developed for nitrite detection. The BiVO4 was prepared by hydrothermal methods and […]
Near-infrared light emission of Er3+-doped zirconium oxide thin films: An optical, structural and XPS study Abstract: This paper investigates the near-infrared emission and structural properties of Er3+-doped zirconium oxide thin films modified with a fixed […]
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