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Uso de imagens digitais e ferramentas quimiométricas para identificação e determinação de Cr (VI) em solos contaminados
(Universidade Federal de São Carlos, 2012-03-23)
The determination of toxic metals in soils is an important factor to access their quality or identify possible contamination. The element Cr has double feature: Cr (III) is essential for human beings and Cr (VI) is toxic. ...
Desenvolvimento de imunossensores piezelétrico e eletroquímico para detecção de amostras de interesse agronômico e de saúde
(Universidade Federal de São Carlos, 2012-07-23)
This work shows development of immunosensors for agronomic interest and public heath. The first was a piezoeletric immunosensor to detect a cysteine peptidase, a potencial biomarker for Xanthomonas citri subsp. citri that ...
Determinação de molibdênio em plantas combinando microextração e espectrometria de absorção atômica em chama
(Universidade Federal de São Carlos, 2012-08-16)
In this study, a procedure for the determination of low concentrations of molybdenum in plants by flame atomic absorption spectrometry (FAAS) was developed. The poor sensitivity of FAAS for determination of refractory ...
Mapa de caracterização do texto científico : produção e funcionamento em disciplinas de química do ensino superior
(Universidade Federal de São Carlos, 2012-01-24)
The main objectives of this research were to develop and to implement a tool ‐ the Characterization Map of Scientific Text ‐ which could assist students in recognizing the structural and rhetorical aspects of ...
Teores dos elementos químicos essenciais e tóxicos na rastreabilidade da carne bovina
(Universidade Federal de São Carlos, 2012-02-15)
The objective of this work was to develop methodologies for the determination of inorganic constituents in meat sample and the study of correlations between samples with chemical elements profile, especially Nelore samples ...
Estudo de metabólitos secundários de Ruta graveolens como inibidores da fotossíntese
(Universidade Federal de São Carlos, 2012-12-09)
In this work were isolated eighteen secondary metabolites from Ruta graveolens (Rutaceae), eleven alkaloids (five akridonic, five quinolinics and one quinolonic) and seven furanocoumarins. Thirteen compounds had their ...
Novas rotas para a síntese hidrotérmica de nanoestruturas de óxidos de titânio
(Universidade Federal de São Carlos, 2012-02-28)
The development of new materials has been a major focus of modern science. In order to obtain materials with desired features, studies about synthesis are necessary for a better understanding of their synthetic processes. ...
Desenvolvimento e aplicação de biorreatores capilares para a triagem de ligantes de Purina Nucleosídeo Fosforilases
(Universidade Federal de São Carlos, 2012-02-28)
Purine Nucleoside Phosphorylases (PNPs) are key enzymes of the purine salvage pathway, and therefore are considered attractive targets for new drugs search. In this context, the development of effective and selective ...
Modificação das propriedades dos polímeros comerciais de SBR e NBR a partir da incorporação de nanopartículas sintéticas
(Universidade Federal de São Carlos, 2012-03-23)
Numerous efforts have focused on the search for new materials involving lower cost, greater durability and, especially, lower environmental impact. In this sense, polymer nanocomposites have become the focus of many research ...
Síntese eletroquímica e caracterização de filmes finos de CdZnTe
(Universidade Federal de São Carlos, 2012-01-27)
Studies on the electrodeposition of semiconductor films has been developed primarily for the binary chalcogenides. However, there are several ternary systems that are poorly researched and have broad application spectrum, ...