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Síntese e avaliação fotofísica de compostos fulereno[60]-glicoconjugados
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2018-09-19)
In the midst of a variety of alternative therapies in the treatment of several diseases, the photodynamic therapy appears as a versatile protocol. This therapy uses the absorptive properties of photoactive molecules, called ...
Reação de alquinos terminais com 1,1,1-trialo-4-alcóxi-3- alquen-2-onas
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2005-02-21)
In this work a convenient method of synthesis of 9 eninones is presented, through the reaction of different acetylenes (phenylacetylene, 1-heptyne and 1-hexyne) with n-butillithium and subsequently with electrophiles ...
Speciation analysis of inorganic antimony in airborne particulate matter employing slurry sampling and HG QT AAS
(2011)
The present paper proposes an analytical procedure for speciation analysis of inorganic antimony in
airborne particulate matter using slurry sampling and hydride generation atomic absorption
spectrometry (HG QT AAS). During ...
Manufacturing and characterization of porous ceramic capillary membranes for enzyme functionalization through click chemistry
(2018)
Capilares porosos feitos de zircônia foram fabricados e caracterizadoscombinando a técnica de moldagem por extrusão e material de sacrifício.Pastas cerâmicas, coloidalmente estáveis, de zircônia estabilizada comítria com ...
Análise preliminar de risco no processo de solda oxiacetilênica em tubos de cobre na construção civil
(Universidade Tecnológica Federal do ParanáCuritibaBrasilEspecialização em Engenharia de Segurança do TrabalhoUTFPR, 2016-03-17)
The air conditioning direct expansion systems type VRF (variable refrigerant flow) has been widely installed in new buildings and existing buildings reforms. These air conditioning systems are used long copper pipes and ...
Comparative studies of the feed gas composition effects on the characteristics of DLC films deposited by magnetron sputtering
(ELSEVIER SCIENCE SA, 2004-07-01)
Mixtures of acetylene/argon and methane/argon with different volume percents of hydrocarbon were used as the precursor gas to grow DLC films, keeping constant the other process parameters. The substrates used were p-type ...
Artemisia magellanica: Chemical composition of the essential oil from an unexplored endemic species of Patagonia
(Wiley VCH Verlag, 2019-06-26)
The essential oil composition of the aerial parts of Artemisia magellanica Sch. Bip. (Asteraceae), native to Patagonia, was analyzed by GC-FID-MS. This is the first report on the essential oil composition of A. magellanica. ...
Superhydrophobic plasma polymerized nanosponge with high oil sorption capacity
(Wiley VCH Verlag, 2019-03)
Oil spills in water cause environmental and economic disasters. Herein, a superhydrophobic and oleophilic carbonaceous nanosponge (CN) with high adsorption capacity for selective oil removal from water was developed. It ...
Accumulation of heavy metals in the franciscana (Pontoporia blainvillei) from Buenos Aires Province, Argentina
(LAJAM, 2002-07)
Marine mammals accumulate heavy metals in their tissues at different concentrations according to trophic levels andenvironmental conditions. The franciscana (Pontoporia blainvillei) is a small coastal species inhabiting ...
Optimal design of ethylene and propylene coproduction plants with generalized disjunctive programming and state equipment network models
(Pergamon-Elsevier Science Ltd, 2021-06)
In this work, we propose a superstructure optimization approach for the optimal design of an ethylene and propylene coproduction plant. We formulate a superstructure that embeds ethane and propane steam cracking technologies, ...