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Tris(trimethylsilyl)silane and visible-light irradiation : a new metal- and additive-free photochemical process for the synthesis of indoles and oxindoles
(Universidade Federal de São Carlos, 2016-07-29)
A combined tris(trimethylsilyl)silane and visible-light-promoted intramolecular reductive cyclization protocol for the synthesis of indoles and oxindoles has been developed (Scheme 1).1 This straightforward and efficient ...
Emprego de técnicas espectroanalíticas para a análise de amostras de solos e de coprólitos : análise de textura e exploratória
(Universidade Federal de São Carlos, 2015-08-21)
In this
study, samples of coprolites (fossilized feces) were analyzed in LIBS (Laser-Induced
Breakdown Spectroscopy) to evaluate the chemical profile in these samples using
hyperspectral images, which enable us to assess ...
As atividades experimentais educativas como complemento e motivação no ensino - aprendizagem de química no ensino médio
(Universidade Federal de São Carlos, 2015-12-18)
The proposed investigative work within the PPGQ - Professional Master - Chemistry Teaching UFSCar, proposes to use as a teaching methodology using the teaching kit as a motivating tool for learning of high school students. ...
Funcionalização e caracterização do carbon black vulcan XC–72R para aplicações em biossensores baseados em inibição enzimática
(Universidade Federal de São Carlos, 2016-02-18)
In this work, carbon black Vulcan XC-72R was functionalized using five different treatments, the oxidizing agents employed were: nitric acid, sulfuric acid and hydrogen peroxide. The physical characterization of functionalized ...
Cinética de fotodegradação natural de contaminantes emergentes em ETE aeróbia
(Universidade Federal de São Carlos, 2019-02-26)
The advances in sample preparation and analytical detection techniques made possible the evaluation of a new class of contaminants found in the ug L-1 – ng L-1 range, known as Emerging Contaminants (EC). Along with that, ...
Estudo da atividade biológica do motivo ECD do domínio tipo-desintegrina da botropasina
(Universidade Federal de São Carlos, 2011-05-10)
Integrins are cell surface receptors that mediate cell adhesion and platelet aggregation, although they do part of important physiological processes in the organism, are also related pathologies such as tumorigenesis, ...
Estudo do eletropolimento galvanostático de aço inoxidável AISI 304 utilizando soluções ácidas concentradas
(Universidade Federal de São Carlos, 2011-12-09)
Stainless steel has been the subject of numerous studies due to technological and economic importance. Features such as durability, corrosion and high temperatures resistances confer to the steel relevant applications in ...
Detecção e degradação eletroquímica do bisfenol A utilizando eletrodos de diamante dopado com boro
(Universidade Federal de São Carlos, 2011-02-25)
The electrochemical detection of bisphenol A (BPA) by differential pulse voltammetry (DPV) using a boron-doped diamond (BDD) electrode was developed. A 0.5 mol L 1 H2SO4 solution was used as supporting electrolyte and the ...
Estudo fitoquímico de Astronium graveolens (Anacardiaceae) e da ação de seus constituintes sobre o formigueiro de Atta sexdens rubropilosa
(Universidade Federal de São Carlos, 2011-06-17)
Brazil has a rich fauna and flora, for these reasons it is called as mega-diverse country. This diversity enables the isolation and identification of substances that become promising in several areas and an example is the ...
Desenvolvimento de eletrodo modificado com filme de polianilina e estudo da viabilidade da aplicação analítica para catecolaminas
(Universidade Federal de São Carlos, 2010-08-13)
This work describes the development of a polyaniline (PANI) film modified electrode for determination of dopamine (DA) in pharmaceutical formulation. The electropolymerization of PANI film on platinum electrode was performed ...