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Polipropileno reciclado para contato com alimento: etching e deposição de filmes de carbono amorfo hidrogenado por plasma
(Universidade Federal de São Carlos, 2020-09-30)
The increasing applications of polymers make this material one of the most consumed in the world market. Accompanying this scenario is the generation of waste, and although plastic has gradually conquered its space as a ...
Síntese e caracterização de catalisadores a base de Au e Cu e suas aplicações na desidrogenação do 5- hidroximetilfurfural
(Universidade Federal de São Carlos, 2021-11-30)
Dependence on oil as a source of fuel and raw material to produce chemical products opens space for the development of catalytic systems aimed at the use of biomass. In this sense, this work aims to develop a new route to ...
Precious, strategic and toxic elements in electronic waste: bibliometric evaluation, proposition of reference material and direct analysis by laser-based techniques and fluorescence spectrometry
(Universidade Federal de São Carlos, 2021-03-26)
Waste electrical and electronic equipment (WEEE) is among the fastest growing types of solid waste in the world. In addition, this is a complex waste stream when it comes to recycling, due to the large variety of valuable ...
Estudo teórico: da adsorção de etanol em clusters de Cun e Aun (n = 10-20)
(Universidade Federal de São Carlos, 2021-08-24)
In this work, we study aggregates, which we will call clusters of copper and gold with and without the adsorbed ethanol molecule. First, we investigated the most favorable positions for ethanol adsorption to occur in ...
Determinação de pesticidas organoclorados e fármacos em matrizes ambientais utilizando QuEChERS, extração líquido-líquido (LLE) e extração em fase sólida (SPE)
(Universidade Federal de São Carlos, 2021-11-24)
The presence of xenobiotic organic contaminants in water bodies, where arrive from releases of treated or untreated effluent, has raised concerns
about impacts related to the richness and biodiversity of aquatic life and ...
Esfoliação e funcionalização de nanofolhas de MoS2: desenvolvimento de novos materiais elastoméricos
(Universidade Federal de São Carlos, 2021-09-30)
Two-dimensional materials, such as MoS2, have been extensively studied in recent decades due to their excellent properties in electronics, electrocatalysis, optics and mechanics. A major focus in recent research resides ...
Estudo teórico e experimental da interação de elétrons com moléculas de interesse astroquímico
(Universidade Federal de São Carlos, 2021-09-08)
We performed a theoretical and experimental investigation on electron (e⁻) scattering by molecules of astrochemical interest. Theoretically, we obtained elastic differential (DCSs), integral (ICSs) and momentum-transfer ...
Espalhamento elástico de elétrons e ionização dissociativa da molécula de trimetil fosfato
(Universidade Federal de São Carlos, 2021-09-28)
The trimethyl phosphate molecule is an important prototype for studying electron interactions with molecules of biological significance containing the phosphate group. These studies contribute to the understanding of energy ...
Synthesis, characterization and cytotoxicity of Pd(II) complexes for the inhibition of cathepsin B
(Universidade Federal de São Carlos, 2021-12-13)
Cancer is one of the most dreaded diseases of the 20th century, and its prevalence and incidence are increasing in the 21st century. The situation is so serious that one in four people can develop cancer in their lifetime. ...
Modificação de matrizes em análise espectroscópica por Raman e infravermelho médio
(Universidade Federal de São Carlos, 2021-12-16)
The spectroscopy methods of analysis, as Mid Infrared (MIR) and Raman spectroscopy, are based on the interaction of light and matter. These techniques present advantages, such as, non-destructive analysis, low cost and ...