Search
Now showing items 161-170 of 321
Avaliação do uso de laser-induced breakdown spectroscopy (LIBS) e wavelength dispersive x- ray fluorescence (WDXRF) na análise direta de couros naturais e sintéticos
(Universidade Federal de São Carlos, 2018-10-01)
The aim of this doctoral thesis was the development of analytical procedures for the qualitative and quantitative analysis of leather samples using LIBS and WDXRF techniques for direct analysis of solid samples. The first ...
Estudo das propriedades estruturais, ópticas e fotoluminescentes do Sistema α-(Ag2-3x-yTRxLiy)WO4 (TR = Pr, Sm, Eu, Tb, Dy e Tm)
(Universidade Federal de São Carlos, 2018-08-17)
Luminescent materials of different colors emission are of great interest for development of new or more efficient optical devices. Although many materials have been reported using different approaches, green synthesis and ...
Novas abordagens na síntese de heterociclos com potencial aplicação na síntese de moléculas bioativas
(Universidade Federal de São Carlos, 2017-08-04)
Cobalt-catalyzed oxidative cyclization of gem-disubstituted
conjugated alkenols: In this part of the work we applied the Mukaiyama
Oxidative Ciclization under oxidative and reduced termination conditions
aiming the ...
"Fotoquímica “verde”: desenvolvimento de complexos de metais de transição luminescentes para ativação de oxigênio singleto e a sua aplicação na desinfecção de água contaminada com microorganismos patogênicos (Escherichia Coli e Enterococcus Faecalis)”
(Universidade Federal de São Carlos, 2015-11-06)
Green Photochemistry: Development of transition metal complexes for
activation of luminescent singlet oxygen and its application in the disinfection of
wastewaters contaminated with pathogenic microorganisms (Escherichia ...
Morfologia e propriedades estruturais de óxidos metálicos complexos: um enfoque teórico e experimental
(Universidade Federal de São Carlos, 2018-07-18)
Design, control and direct characterization of the properties of the surfaces are prerequisites for all practical applications of (nano) materials. Within this context, the present doctoral thesis is an experimental and ...
Estudo computacional das interações entre nanopartículas de dióxido de titânio envolvidas no processo de coalescência orientada
(Universidade Federal de São Carlos, 2018-04-03)
Experimental and theoretical studies have shown that the aggregation of TiO2 anatase nanoparticles (NPs) occurs with preferential crystallographic orientation by the so-called oriented attachment mechanism (OA). The growth ...
Sintese e avaliação de peptidomiméticos contendo heterociclos de três membros como inibidores de catepsina L
(Universidade Federal de São Carlos, 2017-12-01)
Cathepsin L is a lysosomal cysteine protease, that is related to many physiological processes, however overexpression and up- or downregulation may cause several pathologies. Therefore, cathepsin L became an interesting ...
Síntese, caracterização de cocristais e sais-cocristais de ingredientes farmacêuticos ativos
(Universidade Federal de São Carlos, 2016-02-29)
Using techniques/procedures of green chemistry, solid state grinding,
solvent drop grinding and solvent drop grinding with heating, twenty compounds were
synthesized. Eleven compounds of dropropizine (antitussive): two ...
Diferenciação e caracterização química de espécies de Phyllanthus utilizando técnicas hifenadas
(Universidade Federal de São Carlos, 2016-01-15)
Several species of Phyllanthus genus are widely used in popular
medicine, even though very few phytochemical reports on species such as: P.
caroliniensis, P. stipulatus and P. tenellus are found in the literature. ...
Estudo de formação de tris-acetal internoe espiro-carbocíclicos a partir de (R)-(–)-e espiro-carbocíclicos a partir de (R)-(–)
(Universidade Federal de São Carlos, 2016-11-07)
In this work we studied, initially, the formation of the internal tris-ketals derivatives from their respective 2,2-bis-propargyl cyclic ketones from catalysis by gold complexes.
The reaction conditions were studied for ...