Menu
1.2.1.4 Asphalt Emulsion. Asphalt emulsion (emulsified asphalt), like cutback asphalt, is also designated as a liquid asphalt to distinguish this product from the typical semisolid to solid asphalt binders. It is a mixture of two normally immiscible components (asphalt and water) and an emulsifying agent (usually soap). However, it is important.
Microemulsion is an isotropic mixture of oil, surfactant, Cosurfactant and drug.Upon mild agitation followed by dilution in aqueous media, such as gastrointestinal (GI) fluids, the systems can form fine oil in water (O/W) Microemulsions which usually have a droplet size less than 100 nm.Microemulsion have been successfully used to improve the solubility, chemical stability, and oral bioavailability of many poorly water soluble drugs.They have characteristic properties such as a low interfacial tension, large interfacial area and capacity to solubilize both aqueous and oil-soluble compounds.