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Preparação e caracterização de filmes nanoestruturados suportados em membrana de celulose contendo nanopartículas de Au e TiO2 para produção de H2
(2014-06-24)
The search for renewable energy sources is a subject of great interest worldwide due to
growing energy demand, instability in oil prices and environmental problems. In this
context, the self-assembled thin films have ...
Desenvolvimento e caracterização de compósitos poliméricos poliéster/nanocelulose
(2015-11-24)
The search for low-impact, renewable materials is a recent research topic. The need to substitute materials from non-renewable sources is one of the main motivations for such studies in this area. In this context, one of ...
Nanopartículas de dióxido de titânio e avaliação da sua toxicidade no mexilhão dourado (Limnoperna fortunei)
(2016-07-01)
Nanotechnology is one of the fastest-growing areas of the actuality. Nanoparticles of titanium dioxide (TiO2-NP) have been widely used in many products and processes in recent years. As consequence, these nanoparticles are ...
Produção fotocatalítica de hidrogênio a partir de filmes finos poliméricos nanoestruturados suportados em substrato flexível
(2017-05-10)
The use of renewable energy such as solar energy to produce hydrogen gas (H2), through the photocatalytic process of breaking the water molecule, is a promising alternative to conventional energy sources. In this context, ...
Desenvolvimento de estratégias de funcionalização em nanopartículas de ouro para aumentar a sensibilidade de testes para diagnósticos virais
(2019-07-10)
Gold nanoparticle (AuNPs) functionality has been highlighted in several areas of knowledge in recent decades, including diagnostics, where factors such as dispersion and stability are directly related to the test performance, ...
Produção de aerogel a partir de nanofibras de celulose obtidas de resíduos da indústria moveleira (Pinus elliottii var. elliottii) para sorção de óleos
(2018-02-01)
Petroleum is a feedstock of great economic value. Due to the aim for non-renewable feedstocks substitution, vegetable oils have been used ever more as a feedstock for fuels and polymers. Spills during oil handling are ...
Contribuições do fenômeno de atrito no sistema ferro puro nitretado e pós-oxidado
(2017)
Control and reduction of friction can help in the elaboration of strategies of energy efficiency and in the reduction of carbon dioxide (CO2) emission. Although there are well established phenomenological laws for friction, ...
Nanotecnologia, ambiente e direito: desafios para a sociedade na direção a um marco regulatório
(2014-05-30)
Nanotechnology launches a new era of technological convergence without ancestors from the human society history, whether its branches are placed in the majority of sciences and establishes new ways of communication. Analyze ...
Avaliação da incorporação de nanopartículas de ouro em filmes automontados de polieletrólitos fracos
(2014-06-05)
Nanotechnology has brought some new challenges such as the development of quality and synthesis processes on nanostructures based on inorganic and organic substances. The development of new materials with organic and ...
Preparação e caracterização de membranas compósitas polisulfona/material celulósico como barreira seletiva
(2014-06-23)
This work investigated the preparation and obtaining of nanocrystalline cellulose
(cellulose whiskers or cellulose nanocrystals) for use in polysulfone composite membranes
prepared by phase inversion method. Preparation ...