What is microemulsion method?
The microemulsion technique promises to be one of the versatile preparation method which enables to control the particle properties such as mechanisms of particle size control, geometry, morphology, homogeneity and surface area.
What is term microemulsion?
A microemulsion is defined as a thermodynamically stable isotropic dispersion of two immiscible liquids in which the microdomain of either or both liquids was stabilized by an interfacial film of surface-active compounds [42].
What is microemulsion and multiple emulsion?
54. 54 Multiple emulsions are complex polydispersed systems where both oil in water and water in oil emulsion exists simultaneously which are stabilized by lipophillic and hydrophilic surfactants respectively.
What is microemulsion Slideshare?
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.
What is microemulsion polymerization process?
Definition. Microemulsion polymerization is defined as polymerization involving a radical chain propagation reaction with vinyl monomers in one phase of a microemulsion, and the produced polymer colloid is denoted as latex.
What is microemulsion size?
A microemulsion is a thermodynamically stable fluid. It is different from kinetically stable emulsions which will be break into oil and water over time. The particle size of microemulsions ranges from about 10 nm to 300 nm. Because of the small particle sizes, microemulsions appear as clear or translucent solutions.
What are the advantages of microemulsion?
Microemulsions have been proposed as drug delivery systems to enhance the absorption of drug across biological membranes (Majuru and Oyewumi, 2009). Some of microemulsions advantages include: (1) increased solubility and stability of drugs, and (2) ease and economical scale-up.
What is microemulsion method for nanoparticle synthesis?
Controllable particles sizes of starch nanoparticles were synthesized via a precipitation in water-in-oil microemulsion approach. Microemulsion method offers the advantages of ultralow interfacial tension, large interfacial area, and being thermodynamically stable and affords monodispersed nanoparticles.
What are the four compositions of microemulsion?
4 Microemulsions. Microemulsions are clear, thermodynamically stable, isotropic liquid mixtures of oil, water, surfactant, and cosurfactant.
How do you make microemulsion?
Microemulsions (MEs) are clear, thermodynamically stable, optically isotropic systems. They are formed spontaneously upon mixing a suitable oil, water, and an amphiphile blend (surfactants either alone or in combination with a cosurfactant; (1–4)).
