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Estudo microgravimétrico da formação de filmes de prata eletrodepositados
(Universidade Federal de São Carlos, 2009-09-04)
In this thesis, a voltammetric coupled to microgravimetry investigation about the electrodeposition of silver over polycrystalline platinum in acid medium was performed. Microgravimetry is helpful to understand the effect ...
Eletrodeposição de nanoestruturas de cobalto em alumina anódica porosa e sua caracterização magnética
(Universidade Federal de São Carlos, 2009-08-27)
In this thesis, the results regarding the investigation about the cobalt electrodeposition in templates of porous anodic alumina are presented. The doctorade is divided in four main sections. The _rst one has consisted in ...
Utilização da RMN aliada a métodos quimiométricos na análise de méis e aguardentes
(Universidade Federal de São Carlos, 2009-02-17)
Apiculture has been increasing a lot in the last years in Brazil, which already is one of the greatest exporters of honey. Productive chain of aguardentes has also risen, and both products are considerably important in ...
Estudo do potencial enzimático de micro-organismos endofíticos para a biotransformação de produtos naturais e análogos sintéticos
(Universidade Federal de São Carlos, 2009-11-27)
The endophytic microorganisms Penicillium griseoroseum, Penicillium brasilianum, Aspergillus flavus e Aspergillus aculeatus have shown to be very efficient in order to perform the most diferenciated biotransformation ...
Estudo computacional da enzima gGAPDH do Trypanosoma cruzi
(Universidade Federal de São Carlos, 2009-06-05)
Theoretical methods in computational chemistry were used to study the gGAPDH enzyme from Trypanosoma cruzi. This protozoan is responsible by the Chagas diseases. Molecular dynamics simulations were performed to obtain the ...
Eletrossíntese, caracterização e testes de compósitos de polipirrol e poli(DMcT) sobre fibra de carbono como catodos de baterias secundárias e eletrodos de supercapacitores
(Universidade Federal de São Carlos, 2009-11-27)
In this work bilayered electrodes made of polypyrrole Ppy and poly(2,5-dimercapto-1,3,4-tiadiazol) poly(DMcT) were produced and characterized on carbon-fiber substrate. To do so, several aspects were investigated: ...
Estudos do crescimento anódico de óxidos e da deposição de apatitas sobre a liga biocompatível Ti-13Nb-13Zr
(Universidade Federal de São Carlos, 2009-10-30)
Studies on the anodic growth of oxide films passivating the biocompatible alloy Ti-13Nb-13Zr (m/m) and the formation of hydroxyapatite (HA) films on these oxides were carried out in this work. The oxides were grown either ...
Estudo da corrosão do aço ao carbono em meio de sulfeto
(Universidade Federal de São Carlos, 2009-09-08)
This work presents a study of the 1020 and 1040 carbon steel corrosion in aqueous solution containing dissolved H2S in order to investigate the effect of H2Saq and HSaq species. Some different electrolytes were used: acetic ...
Ordem-desordem: uma avaliação estrutural do Ba(ZrxTi1-x)O3
(Universidade Federal de São Carlos, 2009-08-07)
This work have as aim, the synthesis of ceramic powders of Ba(ZrxTi1¡x)O3 (x = 0, 0.25, 0.50, 0.75 and 1) by the polymeric precursor method and investigate the degree of structural order-disorder of these systems by different ...
Síntese e avaliação biológica de uma coleção de flavonóides
(Universidade Federal de São Carlos, 2009-05-29)
The flavonoids are an important class of polyphenolic compounds present in relative abundance among the secondary metabolites of plants and are found in fruits, vegetables, nuts, seeds, flowers, tea, honey and propolis. ...