Oil in water emulsifier examples5/15/2024 ![]() The compound may be given as a tablet, capsule, granule, or powder for oral administration. Fat emulsions serve as dietary complements for patients who cannot get the required fat solely from their diet. Intravenous and parenteral emulsions may be used for nutritive therapy applications when a patient is unable to consume food or receive nutrition. They are used to make medications more palatable, to improve their effectiveness via dosage control of active ingredients, and to provide better aesthetics for topical drugs such as ointments. Emulsions allow the encapsulation of an active ingredient in the dispersed phase to protect it from degradation and preserve its activity in a sustained manner. These emulsions are called creams, ointments, balms, pastes, films, or liquids, depending on their oil-to-water ratios, the addition of other additives, and their intended administration route. These are usually oil and water emulsions, albeit dispersed. ![]() Thus, hydrophilic surfactants foster O/W emulsions, whereas lipophilic surfactants promote W/O emulsions.Įmulsions are frequently used in pharmaceuticals, personal hygiene products, and cosmetics. Usually, the phase in which the surfactant exhibits the greatest solubility is the continuous phase. Industries use emulsifying agents, eg, surfactants, to maintain a static structure. Emulsions are thermodynamically unstable as both the dispersed and continuous phases can revert as separate phases, oil, and water, by fusion or the coalescing of droplets. In contrast, the emulsion has two liquid components that are initially immiscible with each other.Įmulsions, as liquids, do not demonstrate a static internal structure. The critical difference between a colloid and an emulsion is that colloid can form when any state of matter (solid, gas, or liquid) combine with a liquid. A colloid is a mixture of a compound that is in a solid, liquid, or gas state and a liquid. Emulsions are a sub-class of colloids, which are two-phase systems of matter.Īlthough the terms colloid and emulsion are sometimes used indistinctly, emulsion applies only when both dispersed, and continuous phases are liquids.
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