Microemulsion
Mostrando 13-24 de 111 artigos, teses e dissertações.
-
13. CHROMIUM EXTRACTION BY MICROEMULSIONS IN TWO- AND THREE-PHASE SYSTEMS
Abstract Microemulsion systems were used to remove chromium from an aqueous solution obtained from acid digestion of tannery sludge. The systems were composed by: coconut oil soap as surfactant, 1-butanol as cosurfactant, kerosene as the oil phase, and chromium solution as the aqueous phase. Two- and three-phase microemulsion extraction methods were investig
Braz. J. Chem. Eng.. Publicado em: 2015-12
-
14. Physicochemical, in vitro and in vivo evaluation of flurbiprofen microemulsion
RESUMOO flurbiprofeno, potente anti-inflamatório não esteroidal, é amplamente utilizado no alívio da dor de pacientes que possuem doenças reumáticas, enxaqueca, dores de garganta e dismenorreia primária. Entretanto, apresenta muitos efeitos gastrointestinais indesejáveis quando administrado por via oral como hemorragia gástrica e úlcera péptica. E
An. Acad. Bras. Ciênc.. Publicado em: 15/09/2015
-
15. SYNTHESIS AND CHARACTERIZATION O F SODIUM METHYL ESTER SULFONATE FOR CHEMICALLY-ENHANCED OIL RECOVERY
Abstract Attention has been given to reduce the cost of surfactant by using castor oil as an alternative natural source of feedstock. A new surfactant, sodium methyl ester sulfonate (SMES) was synthesised using ricinoleic acid methyl ester, which is obtained from castor oil, for enhanced oil recovery in petroleum industries. The performance of SMES was studi
Braz. J. Chem. Eng.. Publicado em: 2015-09
-
16. Synthesis, Characterization and Applications of Iron Oxide Nanoparticles - a Short Review
ABSTRACT: Iron oxide is a mineral compound that shows different polymorphic forms, including hematite (α-Fe2O3), magnetite (Fe3O4) and maghemite (γ-Fe2O3). Solid propulsion technology nanoparticulate materials, such as hematite and maghemite, exhibit high performance on thermal decomposition of ammonium perchlorate. The enhanced catalytic effect of metalli
J. Aerosp. Technol. Manag.. Publicado em: 2015-09
-
17. Mucoadhesive microemulsion of ibuprofen: design and evaluation for brain targeting efficiency through intranasal route
O objetivo deste trabalho foi planejar microemulsão/mucoaesiva em gel a fim de melhorar a captação cerebral de ibuprofeno por via intranasal. A microemulsão para mucoadesão com ibuprofeno (MMEI) foi desenvolvida pela incorporação de policarbofil como polímero mucoadesivo em microemulsão otimizada (MEI) com base em Capmul (MCM) e foi submetida à car
Braz. J. Pharm. Sci.. Publicado em: 2015-09
-
18. Microemulsion based on Pterodon emarginatus oil and its anti-inflammatory potential
Descrevemos o desenvolvimento de um produto farmacêutico contendo ativo vegetal baseado em uma planta medicinal brasileira. Foi avaliada a habilidade de formação de uma microemulsão à base do óleo de Pterodon emarginatus (sucupira) e seu potential anti-inflamatório. Uma formulação foi desenvolvida utilizando o óleo de P. emarginatus, mistura de ól
Braz. J. Pharm. Sci.. Publicado em: 2015-03
-
19. Production of biodiesel catalyzed by Candida rugosa lipase at interface of w/o microemulsion system
A síntese de biodiesel foi realizada entre o ácido palmítico e o metanol em microemulsão reversa (w/o) preparada a partir da mistura de ácido dodecilbenzenossulfônico (DBSA)/isooctano/água. O planejamento Box-Behnken foi adotado para avaliar o efeito de importantes fatores que afetam o rendimento de palmitato de metila e a metodologia de superfície d
J. Braz. Chem. Soc.. Publicado em: 2014-09
-
20. Antifungal activity of topical microemulsion containing a thiophene derivative
Fungal infections have become a major problem of worldwide concern. Yeasts belonging to the Candida genus and the pathogenic fungus Cryptococcus neoformans are responsible for different clinical manifestations, especially in immunocompromised patients. Antifungal therapies are currently based on a few chemotherapeutic agents that have problems related to eff
Braz. J. Microbiol.. Publicado em: 2014-06
-
21. Catálise básica usando sílica mesoporosa estabilizada por acrilatos encapsulados
The synthesis of new type of silicas, with structures akin to that of MCM-41, containing polyacrylate-encapsulated micelles in their mesopores is reported. Initially, the monomers were inserted in the aqueous micelles of cetyltrimethylammonium cations. MCM-41 was then prepared in this microemulsion. Finally, the polymerization of the acrylates was initiated
Quím. Nova. Publicado em: 2014-06
-
22. Effects of propofol in lipid-based emulsion and in microemulsion on the incidence of endothelial lesion in rabbits
PURPOSE: To compare the incidence of endothelial injury after single-dose or continuous propofol infusion in conventional lipid-based emulsion (LE) versus microemulsion (ME). METHODS: Forty-two rabbits (2.5-4.5 Kg) were randomly allocated into seven groups of six animals each: SHAM- surgical treatment alone; Bolus Control Group - 3 mL-intravenous (IV) bolus
Acta Cir. Bras.. Publicado em: 2013-12
-
23. Evaluation of different adjuvants formulations for bluetongue vaccine
This study investigated the adjuvant potential of W/O/W multiple emulsions and microemulsions, comparing them with traditional aluminum hydroxide and oil-in-water emulsion adjuvants against bluetongue vaccine (BTV). Local inflammatory reactions were assessed in rabbits by measuring the temperature of the animals and the skin thickness at the site of applicat
Braz. arch. biol. technol.. Publicado em: 25/10/2013
-
24. Hydrodynamics and oxygen mass transfer characteristics of petroleum based micro-emulsions in a packed bed split-cylinder airlift reactor
The effects of aeration velocity and liquid properties on the pertinent hydrodynamic and mass transfer parameters in a split-cylinder airlift reactor (with and without packing) were examined. Four different oil-in-water micro-emulsion systems containing kerosene, heavy naphtha, light naphtha and diesel as the oil at the concentration of 7% (v/v) were used in
Braz. J. Chem. Eng.. Publicado em: 2013-09