Podcast
Questions and Answers
What is the dispersed phase in an Oil-in-Water emulsion?
What is the dispersed phase in an Oil-in-Water emulsion?
What is the continuous phase in a Water-in-Oil emulsion?
What is the continuous phase in a Water-in-Oil emulsion?
What is the role of emulsifying agents in emulsions?
What is the role of emulsifying agents in emulsions?
Which method is used to break down droplets and disperse them evenly in emulsion preparation?
Which method is used to break down droplets and disperse them evenly in emulsion preparation?
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What is a key formulation consideration for emulsions in pharmacy related to particle size?
What is a key formulation consideration for emulsions in pharmacy related to particle size?
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Study Notes
Emulsion Components
- In an Oil-in-Water (O/W) emulsion, the dispersed phase is the oil droplets.
- In a Water-in-Oil (W/O) emulsion, the continuous phase is the oil.
Emulsifying Agents
- Emulsifying agents play a crucial role in stabilizing emulsions by reducing the interfacial tension between the two phases.
- They help to prevent coalescence of droplets and maintain the dispersed state.
Emulsion Preparation
- The method used to break down droplets and disperse them evenly in emulsion preparation is homogenization.
- Homogenization involves applying high shear forces to the mixture, resulting in uniform droplet sizes.
Formulation Considerations
- A key formulation consideration for emulsions in pharmacy is particle size, as it affects the stability and bioavailability of the emulsion.
- The smaller the particle size, the larger the surface area, which can lead to increased instability and reactivity.
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Description
Test your knowledge of emulsions with this quiz! Learn about the types of emulsions, such as oil-in-water and water-in-oil, and the role of emulsifying agents like surfactants. See how well you understand the science behind these mixtures of immiscible phases.
