Browsing PPG - Química - Ciência e Tecnologia da Sustentabilidade by Issue Date
Now showing items 21-40 of 207
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Adsorção de metais poluentes e enzimas em filmes híbridos de Langmuir-Blodgett imobilizados com polissacarídeos algais/fosfolipídios
(Universidade Federal de São Paulo, 2014-05-20)Currently, many biological substances extracted from algae have received special attention because of its intrinsic characteristics which can be applied in different areas of biotechnology. Based on this context, the current ...
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Estudo de método verde para produção de nanopartículas metálicas utilizando aminoácidos e luz
(Universidade Federal de São Paulo, 2014-05-22)Metal nanoparticles (10-9 m) exhibit properties such as high surface area, the effect of quantum confinement and plasmon resonance (SPR). The combination of these features gives the metal nanoparticles different potential ...
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Caracterização tecnológica dos resíduos da indústria de reciclagem de alumínio e da cinza do bagaço da cana-de-açúcar como materiais pozolânicos
(Universidade Federal de São Paulo, 2014-05-23)Over the last decades, the increase in industrial waste production has created several socio-economic and environmental problems, promoting discussions aiming to resolve problems, such as waste disposal and recycling. In ...
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Preparação de nanopartículas de prata em meio alcoólico e utilizando moldes rígidos de silica mesoporosa
(Universidade Federal de São Paulo, 2014-06-06)In this work the preparation and characterization of non-aqueous dispersions of silver nanoparticles (AgNP) prepared with 1-butanol, which acted as both solvent and reducing agent of Ag+ ions, obtained from silver nitrate ...
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Estudos visando à síntese esterosseletiva da 4-ariltetralona e resolução cinética enzimática do 4-ariltetralol
(Universidade Federal de São Paulo, 2014-06-06)This academic Master involved two different and complementary paths of work: i) the study of biorreduction of 4-aryltetralone (±)-5 and bio-oxidation of 4-aryltetralol (±)-6 with microorganisms; ii) study of Enzymatic ...
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Ozonização de líquidos alternativos para produção de óleos com atividade bactericida
(Universidade Federal de São Paulo, 2014-06-13)In this work we have shown the ozonation of two new liquids, a mineral oil (Nujol) and an ionic liquid, aiming to obtain oils with ozone in high concentration and for longtime. The ozonation processes were performed during ...
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Desenvolvimento de métodos em espectrometria de emissão óptica com plasma induzido por laser (LIBS) para determinação de Cd, Cr e Pb em tecidos animais
(Universidade Federal de São Paulo, 2014-08-13)Laser-Induced Breakdown Spectroscopy (LIBS) has been considered a very promising analytical technique for applications in quality control, materials chemistry, environmental toxicology, forensic chemistry, biomedicine, ...
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Desenvolvimento de métodos para determinação de cádmio, chumbo e cromo em cosméticos por espectrometria de emissão óptica com plasma induzido por laser
(Universidade Federal de São Paulo, 2014-08-14)Due to the increasing demand for beauty products, many cosmetic products have been marketed with dubious formulations about the safety of consumers' health. In some cases, pigments containing potentially toxic elements ...
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Isolamento, caracterização estrutural e avaliação do potencial farmacológico de metabólitos especiais das folhas de Schinus terebinthifolius (Anacardiaceae)
(Universidade Federal de São Paulo, 2014-09-09)The present work was performed a bioguided phytochemical study by antiparasitic and cytotoxic activities of extracts from leaves of Schinus terebinthifolius Raddi (Anarcadiaceae). Initially, this extract showed in vitro ...
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Caracterização e triagem ligninolítica de fungos filamentosos isolados de aves migratórias provenientes da Fundação Parque Zoológico de São Paulo
(Universidade Federal de São Paulo, 2014-09-12)Fungi are the great decomposers of organic matter and many of them are able to degrade complex organic matter like celulose, hemicelulose and lignina. These compounds can be used as microbial sources for carbon and therefore ...
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Níveis de concentração de elementos terra raras em sedimentos do Rio Pinheiros, São Paulo
(Universidade Federal de São Paulo, 2014-09-15)This research had as main objective evaluating the concentrations of Rare Earth Elements (REE) in sediments of the Pinheiros River and Billings Reservoir, SP, correlating the determined concentrations of these elements to ...
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Síntese e estudo da estabilidade conformacional de S-nitrosotiós derivados de AINEs (anti-inflamatórios não esteróidais)
(Universidade Federal de São Paulo, 2014-09-30)We synthesized and carried out a conformational study of the S-nitrosothiols 2-methyl-2-(nitrososulfanyl) propyl-phenylacetate-para-substituted 9R1, derivative of propanoic 2-(4-isobutylphenyl) acid (Ibuprofen) 9R2 and ...
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Influência do estresse oxidativo associado ao envelhecimento na sinalização da insulina em modelo de ratas tratadas com frutose
(Universidade Federal de São Paulo, 2014-10-23)Aging is a complex biological phenomenon often followed by socioeconomic changes that have a big impact on the nutritional status and needs of the elderly. Among the theories of aging, the free radical theory presents the ...
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Desenvolvimento e caracterização de compósitos de elastômero termoplástico reforçado com fibra de bananeira
(Universidade Federal de São Paulo, 2014-10-23)The banana crop has been shown to be a potential source of fibers with good mechanical properties. In this work, residual banana fiber was used as reinforcement in composite materials with a thermoplastic elastomer matrix. ...
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Estudo bioanalítico e proteômico de sarcoma de Hippopotumus amphibius
(Universidade Federal de São Paulo, 2014-10-24)This project aims to analyse the protein profile of a Hippopotamus amphibius' sarcoma. Using proteomic analysis on three tissue samples of an animal that passed away due to the advanced stage of the disease, an origin ...
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Estudo das propriedades fotoluminescentes e estruturais de materiais híbridos contendo polímero derivado de polifluoreno pelo processo sol-gel
(Universidade Federal de São Paulo, 2014-10-29)The present work studied polyfluorenes based in materials with two different steps. The first one, a comparative study of two oligomers was done, with polyfluorenes with different amount of phenylene rings added in the ...
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Estudo visando a síntese da (-) - putaminoxina
(Universidade Federal de São Paulo, 2014-11-07)The ()-putaminoxin is a natural decalactone isolated from the culture of Phoma putaminuim fungus, which showed phytotoxic activaty against several plants. This dissertation report our studies aiming at the synthesis of ...
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Avaliação do aproveitamento de resíduos orgânicos gerados em usinas hidrelétricas na produção de adubos orgânicos
(Universidade Federal de São Paulo, 2014-11-07)As Usinas Hidrelétricas (UHE) podem ser constituídas por barragens de terra cujos taludes, em geral, são recobertos por vegetação gramínea que os protegem de deslizamentos de terra. Esta vegetação, no entanto, deve ser ...
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Influência da S-nitrosoglutationa na oxidação da dopamina, um neurotransmissor envolvido na doença de Parkinson
(Universidade Federal de São Paulo, 2014-11-11)Oxidative stress promoted by dopamine (DA) oxidation generates reactive chemical species responsible for neurological disorder such as, for example, Parkinson?s disease. Acting as a reductant in the deactivation of reactive ...
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Preparação e caracterização de filmes finos de PPV contendo grupos doadores e aceptores de elétrons
(Universidade Federal de São Paulo, 2014-11-18)The present work was divided into two steps. The first one, the synthesis of precursor materials for polymerization by the Wessling route of poly(p-phenylene vinylene) (PPV) based materials containing acceptor (cyan) and ...
