10 Questions
Which type of emulsion has the internal phase as water and the external phase as oil?
w/o (water in oil)
In which type of emulsion are small water droplets enclosed within larger oil droplets, which are then dispersed in water?
w/o/w (water in oil in water)
What is the globule size range for microemulsions?
50–500nm
Which type of emulsion is suitable for intravenous injection?
Water in oil emulsion
What is the advantage of microemulsions for drug administration?
They offer improved drug solubilization and bioavailability
What is the nature of the external and internal phases in a water-in-oil emulsion?
The internal phase is oil, and the external phase is water
Which type of emulsion contains small oil droplets enclosed within larger water droplets, which are then dispersed in oil?
Oil in water in oil (o/w/o) emulsion
What is the globule size range for microemulsions?
50–500nm
What is the advantage of multiple emulsion systems?
Improved drug solubilization and bioavailability
Which type of emulsion is suitable for oral, topical, and parenteral administration?
Microemulsions
Study Notes
Emulsion Types
- Water-in-oil emulsion: internal phase is water, external phase is oil.
Microemulsions
- Globule size range: 10-100 nm.
- Advantage: suitable for drug administration due to enhanced bioavailability and solubilization of hydrophobic drugs.
Multiple Emulsion Systems
- Advantage: suitable for oral, topical, and parenteral administration due to versatility and controlled release.
Emulsion Structure
- Water-in-oil emulsion: small water droplets enclosed within larger oil droplets.
- Oil-in-water emulsion: small oil droplets enclosed within larger water droplets, then dispersed in oil.
Note: Let me know if you need any adjustments!
Test your knowledge of emulsions with this quiz. Learn about different types of emulsions and their characteristics.
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