Recent Lessons

Show all results for ""

Drug Delivery Strategies for Cancer Treatment

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

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?

Nanoparticles (B) Signup and view all the answers

What is the incorrect statement about ultrasonic nebulizers?

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

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

PLGA matrix is non-biodegradable whereas PVA/Silicone coating is biodegradable. (A) 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?

Ionic interactions (D) Signup and view all the answers

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

Neutral, anionic, cationic, and ampholytic (C) Signup and view all the answers

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

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

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

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

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

Nanoparticles (C) Signup and view all the answers

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

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

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

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

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

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

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

Dissolving microneedles (D) Signup and view all the answers

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

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

Flashcards are hidden until you start studying