Temperature dependent phase behavior of Pseudo-ternary Thiourea X-100 +1-hexanol (1:5 molar ratios)/oil/water systems is reported. The influence of nature of hydrocarbon oil and type of electrolytes (weak as well as strong) has been investigated on the temperature induced phase behavior of the ternary system. At surfactant concentration, Φs = 40%, a “nose shaped” microemulsion region is observe...

Ž . Ultrafine lead titanate PbTiO powders in tetragonal form have been successfully prepared via two processing routes, 3 Ž . Ž . namely, conventional coprecipitation CPC and microemulsion-refined coprecipitation MCP . The formation process of lead titanate from the resulting precursors was monitored using techniques such as thermal analyses, FTIR spectroscopy, Raman scattering spectroscopy and...

Microemulsions prepared by using either sodium dodecyl sulfate (SDS) or trimethyltetradecylammonium bromide (TTAB) were tested with regard to the migration time, selectivity and number of theoretical plates using a set of both water-soluble and lipid-soluble vitamins. While in the separations where SDS was used as the surface-active agent for microemulsion preparation, better resolutions were o...

The enantiomeric separation of basic drugs was successfully demonstrated by using a novel chiral microemulsion electrokinetic chromatography (MEEKC). An interesting finding was that the chiral oil core ((S)-(+)-2-octanol) within the microemulsion droplets appeared to play an important role in the chiral separation mechanism. In addition, the enantioselectivity of the analyte-selector complex co...

Zinc oxide (ZnO) nanostructures of uniform shapes and sizes (spherical, needle-like, and acicular) were directly synthesized using a relatively precursor-insensitive water-in-n-heptane microemulsion system stabilized by a mixture of cationic and non-ionic surfactants. With this colloidal system, the synthesized ZnO possesses the highest reported surface area (76 m(2) g(-1)) among the published ...

copper sulfate was used as a precursor to prepare cuo nanoparticles in reverse micelles (o/w microemulsion).  this is a technique which allows the preparation of ultrafine metal oxide nanoparticles within the size ranging from 50 to 60 nm. the preparation of nano copper (ii) oxide studied was investigated in the inverse microemulsion system. therefore the nucleation of metal particles proceeds ...

To initiate our research into the development of biocompatiîle gelled-microemulsions based on essential oils (EOs) and sucrose esters (SEs) for topical delivery fluconazole, this formulation study investigated usefulness two relatively harmless natural non-ionic surfactants from group SEs (sucrose laurate stearate) to form, in presence antifungal EOs, stable, isotropic microemulsions effective ...

2014 We first deduce the rigidity coefficient K of a surfactant monolayer at the oil water interface from ellipsometric measurements. For our surfactant monolayer containing alcohol, we find unusually small values of K (K ~ kB T). We then study the oil microemulsion and water microemulsion interfaces, covered with the same film. On the microemulsion side of the film we find a perturbed zone, th...