How do you explain microemulsions?

Microemulsions are clear, thermodynamically stable isotropic liquid mixtures of oil, water and surfactant, frequently in combination with a cosurfactant. The aqueous phase may contain salt(s) and/or other ingredients, and the “oil” may actually be a complex mixture of different hydrocarbons.

Are microemulsions transparent?

Microemulsions are stable transparent dispersions of water and oil (mixture of various hydrocarbons and olefins) and surfactant. They are prepared by simple mixing of the components and do not require specific preparation conditions.

What are microemulsions used for?

Microemulsions have ultralow interfacial tension between the water phase and the oil phase. Water-in-oil microemulsions have been used to deliver water-soluble oilfield chemicals into subterranean rock formations.

Why do microemulsions form spontaneously?

Microemulsion is a thermodynamically stable colloidal system (clear or slightly opalescent isotropic system) and it can be spontaneously formed by mixing all components together in an appropriate proportion.

What is microemulsion and multiple emulsion?

“ A micro emulsion is a system, of water ,oil and an amphiphile which is a single optically isotropic and thermodynamically stable liquid solution.”

Which of the following properties are characteristic of microemulsions?

b. Droplet size greater than/um.

Why are microemulsions more stable than emulsions?

Most recent answer Micro-emulsion is thermodynamically stable as its Gibbs free energy caused by some effects becomes negative. Then the micro emulsion become thermodynamically stable.

What is microemulsions and explain how it differs from emulsions?

Emulsions are stable dispersions of immiscible liquids, but they are not thermodynamically stable. We say that they are kinetically stable. These type of dispersions are sometimes called macroemulsions. Microemulsions, on the other hand, are thermodynamically stable.

Why study microemulsions?

In the past twenty five years, microemulsions have been the focus of extensive research worldwide due to their importance in a variety of technological applications.

Are microemulsions a novel approach to drug delivery?

Sushama Talegaonkar et al. Microemulsions: A Novel approach to e nhanced drug delivery. formulation.2008; 2: 238-257. 27. Shafiqun Nabi S. et al. Formulation

What are some of the best books on microemulsions?

Sushama Talegaonkar et al. Microemulsions: A Novel approach to e nhanced drug delivery. formulation.2008; 2: 238-257. 27. Shafiqun Nabi S. et al. Formulation nanoemulsion technique: A technical note. AAPS Pharm Sci Tech 2007; 8: 1-6. 28. Paul, B.K. and Moulik S.P. Uses and Applications of Microemulsions. Current Science 2001; 80 (8): 990 – 1001.

What is the composition of microemulsions?

INTRODUCTION: Microemulsions are clear, stable, isotropic liquid mixtures of oil, water and surfactant, frequently in combination with a cosurfactant. The aqueous phase may contain salt (s) and/or other ingredients, and the “oil” may actually be a complex mixture of different hydrocarbons and olefins.