Azodyes
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. SELEÇÃO POLIFÁSICA DE MICRORGANISMOS PRODUTORES DE POLIHIDROXIALCANOATOS
Polyhydroxyalkanoates (PHAs) are fully biodegradable biopolyesters produced by many prokaryotes and accumulated as insoluble cytoplasmatic inclusions. The detection of these intracellular granule is usually provided using lipofilic azodyes, which are not specific. Another way to screen PHA-producing bacteria is through culture-independent molecular technique
Quím. Nova. Publicado em: 2016-08
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2. Azopolymers and Applications of Orientational Effects in Liquid Crystal / Azopolímeros e aplicações em efeitos de competição de orientação de cristais líquidos
Neste trabalho foi feito o estudo do efeito de orientação de moléculas de cristal líquido (5CB) em superfícies recobertas com fotopolímeros. Estudamos o processo de alinhamento fotoinduzido às moléculas de cristal líquido, de forma a caracterizar a intensidade de energia de ancoramento em função da energia de luz incidente e da concentração de c
Publicado em: 2009
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3. Potentiometric study of cetylpyridinium chloride cooperative binding to anionic azo-dyes
A ligação do cloreto de cetilpiridinio (CCP) com alguns corantes azo (X6G, 3-BL, DY-42) tem sido extensivamente estudada em várias concentrações de corantes, usando eletrodo de membrana seletiva a cetilpiridinio. Este método se apresenta rápido e preciso. Gráficos logarítmicos de Klotz foram construídos a partir de medidas de EMF. Estes gráficos i
Journal of the Brazilian Chemical Society. Publicado em: 2007-04
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4. Spectrophotometric determination of mosapride in pure and pharmaceutical preparations
Two simple and sensitive spectrophotometric methods (M1 and M2) for the determination of mosapride in pure and in pharmaceutical preparations are described. These methods are based on the interaction of diazotized mosapride (MSP) couples with chromotropic acid (CTA) [M1] in alkaline medium and diphenylamine (DPA) [M2] in acidic medium. The resulting azo-dyes
Eclética Química. Publicado em: 2007
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5. Hidrolases e fenoloxidases de microrganismos como marcadores para seleção de biosuplementadores e avaliação do tratamento sobre efluentes sucroalcooleiros
Due to the current and future problematic of the maintenance of the hydric resources, the reuse of waters after previous treatment has been a strategy in the management of aquifers. The bioaugmentation is one of the techniques of purification of effluents and, because of this, studies were carried out in lagoons from the station of treatment of effluents (ST
Publicado em: 2007
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6. Degradação de corantes reativos pelo sistema ferro metálico/peróxido de hidrogênio
In this work the degradation of aqueous solutions of reactive azo-dyes is reported using a combined reductive/advanced oxidative process based in the H2O2/zero-valent iron system. At optimized experimental conditions (pH 7, H2O2 100 mg L-1, iron 7 g L-1) and using a continuous system containing commercial iron wool, the process afforded almost total discolor
Química Nova. Publicado em: 2005-03
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7. Estudo dos mecanismos de fotodegradação de corantes sobre dióxido de titânio através de técnicas de espectroscopia Raman intensificadas / Study of photodegradation mechanisms of dyes on titanium dioxide through techniques of Raman spectroscopy intensified
The use of spectroscopic techniques for the study of environmental questions is a research area has been experiencing important developments in recent years. These techniques embrace intensified spectroscopic methods, which offer great sensibility and selectivity for the detection of chemical species in low concentrations. In this work, we propose the introd
Publicado em: 2005
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8. Polymeric nanocomposites containing azodyes, phthalocyanines and luminescent polymers / Compósitos poliméricos nanoestruturados de azocorantes,ftalocianinas e polímeros luminescentes
This thesis describes the fabrication and possible applications of layer-by-Iayer (LBL) nanostructured films for three distinct systems comprising i) azopolymers and azodyes, ii) organometallic molecules (phthalocyanines) and iii) luminescent polymers and azodyes. Optically induced birefringence and surface relief gratings (SRGs) were studied in the azobenze
Publicado em: 2003