Drug Delivery Strategies for Cancer Treatment
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Questions and Answers

Which drug delivery system forms spherical vesicles of phospholipid bilayers?

  • Nanoparticles
  • Liposomes (correct)
  • Solid dispersions
  • Self emulsifying drug delivery systems

    • Which drug delivery system emulsifies in lipids?

  • Self emulsifying drug delivery systems (correct)
  • Solid dispersions
  • Nanoparticles
  • Liposomes

    • Which drug delivery system is an amorphous drug in a polymer matrix?

  • Nanoparticles
  • Liposomes
  • Self emulsifying drug delivery systems
  • Solid dispersions (correct)

    • Which drug delivery system is composed of nanosized particles?

    <p>Nanoparticles (B)</p> Signup and view all the answers

    What is the incorrect statement about ultrasonic nebulizers?

    <p>Ultrasonic nebulizers do not produce droplets through turbulence on the liquid surface or by cavitation in the liquid. (B)</p> Signup and view all the answers

    Which of the following statements about PLGA and PVA/Silicone coatings is incorrect?

    <p>PLGA matrix is non-biodegradable whereas PVA/Silicone coating is biodegradable. (A)</p> Signup and view all the answers

    Which of the following is NOT a method by which cross-links are produced in polymeric drug delivery systems?

    <p>Ionic interactions (D)</p> Signup and view all the answers

    What is the classification of drug delivery systems based on the charge of the delivery vehicle?

    <p>Neutral, anionic, cationic, and ampholytic (C)</p> Signup and view all the answers

    Which of the following statements about the microneedle drug delivery system is NOT true?

    <p>The needles pierce the intestines when the tissue contracts. (A)</p> Signup and view all the answers

    What is the principle behind receptor-mediated drug delivery systems?

    <p>Targeting receptors that are differentially expressed between tumors and normal tissues (D)</p> Signup and view all the answers

    Which of the following drug delivery systems is NOT mentioned in the provided text?

    <p>Nanoparticles (C)</p> Signup and view all the answers

    What is the main mechanism by which vibrating-mesh nebulizers produce a gentle aerosol?

    <p>The drug liquid is forced through laser-drilled holes in the metal mesh by the rapid oscillation of the piezoelectric crystal. (C)</p> Signup and view all the answers

    What is the primary purpose of using microneedles for drug delivery?

    <p>To increase the pore size of the skin and facilitate drug diffusion. (A)</p> Signup and view all the answers

    What is the key characteristic of hydrogels that makes them useful for drug delivery?

    <p>Their three-dimensional, cross-linked network structure. (A)</p> Signup and view all the answers

    Which of the following is NOT a type of microneedle drug delivery system mentioned in the text?

    <p>Dissolving microneedles (D)</p> Signup and view all the answers

    What is the primary function of the piezoelectric crystal in a vibrating-mesh nebulizer?

    <p>To oscillate the metal mesh and force the drug liquid through the holes. (C)</p> Signup and view all the answers

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