5 Questions
What is the definition of emulsions?
A thermodynamically stable system of at least two immiscible liquid phases
What is the range of particle diameter of the dispersed phase in emulsions?
0.1 to 10 um
How can emulsions be used in pharmaceutical applications to prolong the release of drugs?
By providing sustained release action
What is one way emulsions provide protection to drugs?
Protecting drugs susceptible to oxidation or hydrolysis
In what way can emulsions be used in pharmaceutical applications to assist in diagnosis?
Intravenous emulsions of contrast media have been developed to assist in diagnosis
Study Notes
Emulsions Definition and Characteristics
- Emulsions are a type of mixture where two or more liquids that don't normally mix, such as oil and water, are combined.
- The dispersed phase in emulsions has a particle diameter range of 0.1-10 micrometers.
Pharmaceutical Applications of Emulsions
- Emulsions can be used to prolong the release of drugs by controlling the release rate of the active ingredient.
- Emulsions provide protection to drugs by shielding them from the external environment, such as light, oxygen, and enzymes, which can degrade the drug.
- Emulsions can be used to assist in diagnosis by serving as a contrast agent in medical imaging, enhancing the visibility of organs and tissues.
Test your knowledge of emulsions with this quiz! Explore the definition, properties, and stabilization of emulsions, including the role of emulsifying agents and particle diameter. Ideal for students and professionals in chemistry, food science, and pharmaceuticals.
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