Principles of Controlled Release Lecs 2-5

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  • Created by: Popstar
  • Created on: 03-04-15 15:45

1. Fill in the blanks of this description of the random walk model.

  • a)entropy b)concentration c) thermal d)maintain e) high
  • a) kinetic energy b) concentration c) thermal d) maintain e) low
  • a)kinetic energy b) concentration c) controlled d) resist e) low
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Other questions in this quiz

2. In release rate slab geometry, which of these are not used in the dMt/dt equation?

  • diffusion coefficient in polymer membrane
  • partition coefficient between membrane and reservoir
  • porosity
  • Total surface area

3. Which of these processes is the rate controlling step in the diffusion model?

  • diffusion through the membrane
  • diffusion into the bulk
  • dissolution from drug particles to molecules
  • diffusion across boundary layer

4. Which of these defines POROSITY?

  • path length of pores
  • frequency of pores
  • size of pores

5. Fill in the blanks

  • a)slow b)fast c) saturated d) reservoir e) release
  • a) fast b)slow c)saturated d) reservoir e) storage
  • a) fast b)slow c)saturated d) bulk e) storage
  • a)slow b)fast c) saturated d) reservoir e) storage


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