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) kinetic energy b) concentration c) thermal d) maintain e) low
  • a)kinetic energy b) concentration c) controlled d) resist e) low
  • a)entropy b)concentration c) thermal d)maintain e) high
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2. Fill in the blanks

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

3. Which of these is diffusion through polymer (Dp) not dependant on?

  • diffusion coefficient through liquid pores
  • Surface area
  • tortuosity
  • Porosity

4. In classification of Rate-Controlled Systems, fill in the blanks.

  • a) pulsatile b) erodible c) membrane/reservoir
  • a) membrane/reservoir b) erodible c) swelling
  • a) erodible b) swelling c) membrane/reservoir

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

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