What are the differences between nanoemulsion and microemulsion in their properties?

What are the differences between nanoemulsion and microemulsion in their properties?

The major distinction between a nanoemulsion and a microemulsion is therefore their thermodynamic stability: nanoemulsions are thermodynamically unstable, whereas microemulsions are thermodynamically stable (see Section 2).

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.

Why is microemulsion not a true emulsion?

In contrast to ordinary emulsions, microemulsions form upon simple mixing of the components and do not require the high shear conditions generally used in the formation of ordinary emulsions.

Which of the following properties are characteristic of microemulsion?

Several interesting characteristics of microemulsions, namely, enhanced drug solubilization, good thermodynamic stability, ease of preparation, low viscosity, high drug-loading capacity, and small droplet size, have drawn attention for their use as vehicles for insulin delivery.

Which of the following properties are characteristics of microemulsion?

What is microemulsion cream?

Cutilite Microemulsion cream 20g Cutilite Cream is a medicine having a combination of medicines that are used to treat melasma. It helps in quick skin renewal. Hydroquinone is a skin lightening medicine. It reduces the amount of skin pigment (melanin) that causes the darkening of the skin.

What’s the difference between an emulsion and a microemulsion?

Another difference is that microemulsions are clear or translucent with droplet size in nanometers, while emulsions are coarse, milky dispersions with droplet size usually measured in micrometers. The use of microemulsions for the transdermal delivery of specific therapeutic agents is also described.

Is the microemulsion a stable or unstable system?

Often, it is unclear whether a microemulsion described in a publication is truly a thermodynamically stable or unstable system. In many applications, an emulsion system having two phases in which the droplet sizes are extremely small appears transparent or translucent, and it could be considered as a microemulsion.

How big is the dispersed phase of a microemulsion?

Microemulsions are clear, thermodynamically stable, isotropic liquid mixtures of oil, water, and surfactant, usually in combination with a cosurfactant (Kogan and Garti, 2006). The droplet size of the dispersed phase in a microemulsion is less than 100 nm.

Which is an initiator in a microemulsion polymerization?

In microemulsion polymerization an initiator that is typically water soluble is added to the aqueous phase of a thermodynamically stable microemulsion containing swollen micelles.