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Mostrando ítems 41-50 de 176
Estudos fitoquímicos e avaliação da atividade antitumoral de extratos vegetais de Casearia sylvestris nanoencapsulados
(Universidade Federal de São Carlos, 2013-03-26)
The term cancer refers to neoplasias that are characterized by uncontrolled growth of cells that have some kind of genetic mutation. Prostate cancer is the cancer with the highest incidence in men. In its initial phase, ...
Nanocompósitos para a liberação controlada de compostos triazínicos aplicados como defensivos agrícolas
(Universidade Federal de São Carlos, 2013-08-02)
This research proposed a preparation method for a nanocomposite, able to control the delivery of high quantities of an active compound, inserted on its matrix, in order to prospect an application for the controlled delivery ...
Síntese e caracterização de nanopartículas de Nb2O5 e estudo de suas propriedades fotocatalíticas
(Universidade Federal de São Carlos, 2013-08-01)
In this study, the use of niobium oxide nanoparticles (Nb2O5) prepared through the OPM method as photocatalysts for the degradation of pollutants was investigated, describing the dependence on hydrothermal parameters ...
Modificação das propriedades dos polímeros de NBR carboxilado comerciais a partir da incorporação de nanopartículas sintéticas
(Universidade Federal de São Carlos, 2014-02-21)
Aiming to overcome the performance of polymers, a new class of hybrid materials has emerged by the fillers insertion into polymeric matrices. In this sense, silica nanoparticles with a diameter of 250 nm were modified by ...
Sensores eletroquímicos contendo supramoléculas de complexos periféricos de rutênio: obtenção e aplicações
(Universidade Federal de São Carlos, 2013-02-28)
In this work were performed the reaction of the 5, 10, 15, 20- (tetrapyridil)porphyrin (TPyP) with the cations: Mn(III), Zn(II), Fe(III) and Ga(III) promoting the insertion of these metals in the porphyrin ring center. The ...
Especiação redox de crômio em amostras de solos contaminados
(Universidade Federal de São Carlos, 2012-03-21)
Chromium and its compounds are employed in various industrial processes, and these activities are responsible for the disposal of significant amounts of materials containing this element in the environment. Due to the known ...
Complexos fosfínicos de Ru(II) e Ru(III) com fármacos anti-tuberculose e seus derivados
(Universidade Federal de São Carlos, 2012-05-25)
In this work were synthesized ruthenium complexes using pyrazinamide (PZA), a first-line drug in the treatment of tuberculosis, as well as isonicotinamide (ins) and isonicotinic acid (INA), isoniazid derivatives, as ligand. ...
Influência da adição de nitrato de cálcio e de PhoslockTM no abatimento dos fluxos de nutrientes e metais na interface sedimento-coluna de água em um sistema lacustre eutrofizado
(Universidade Federal de São Carlos, 2012-02-16)
This research project evaluated the changes in the fluxes of nutrients
and metals at the sediment-water interface as a result of sediment treatment by the
additions of PhoslockTM and calcium nitrate solution. The experiments ...
Identificação e estudo do fungo Mucor circinelloides isolado do tronco de Pinus taeda, com ênfase em biotransformação da carvona
(Universidade Federal de São Carlos, 2012-03-28)
Identification and study of the fungus Mucor circinelloides isolated from the trunk of Pinus taeda, with emphasis on the carvone biotransformation. Fungi associated with plants have been studied ripping seeking the discovery ...
Preparo e caracterização de material de referência de solo para nutrientes e contaminantes inorgânicos
(Universidade Federal de São Carlos, 2014-09-26)
The certified reference materials make an important role in the establishment of traceability in analytical chemistry, ensuring reliability and accuracy to the measurements and are fundamental for the validation of analytical ...