Nanomedicine MCQ

Q1. Nanoparticles improve drug delivery primarily due to their:

Correct Answer: A

Large surface area enhances interaction and delivery.

Q2. What characteristic allows nanoparticles to cross cell membranes?

Correct Answer: A

Nanoscale size enables cell membrane penetration.

Q3. Which property is typical of quantum dots used in medical imaging?

Correct Answer: A

Quantum dots exhibit size-dependent fluorescence.

Q4. Gold nanoparticles are often used in cancer therapy because they:

Correct Answer: B

Gold NPs improve radiotherapy efficiency.

Q5. PEGylation of nanoparticles helps in:

Correct Answer: A

PEGylation prolongs circulation by evading immunity.

Q6. Which of the following nanocarriers is lipid-based?

Correct Answer: B

Liposomes are lipid bilayer vesicles.

Q7. The enhanced permeability and retention (EPR) effect helps nanoparticles:

Correct Answer: B

EPR enables nanoparticle accumulation in tumors.

Q8. What is a major challenge of nanomedicine in clinical translation?

Correct Answer: A

Scaling production while maintaining quality is hard.

Q9. Which imaging modality can be enhanced using iron oxide nanoparticles?

Correct Answer: B

Iron oxide NPs improve MRI contrast.

Q10. Nanoparticles can induce toxicity mainly due to:

Correct Answer: A

Higher surface reactivity can cause toxicity.

Q11. Passive targeting in nanomedicine relies on:

Correct Answer: B

Passive targeting exploits EPR effect.

Q12. Which nanomaterial is known for its high mechanical strength and electrical conductivity?

Correct Answer: B

Carbon nanotubes possess exceptional strength and conductivity.

Q13. Drug release from nanoparticles can be triggered by:

Correct Answer: D

Various triggers are exploited for controlled release.

Q14. Which property of nanoparticles affects their biodistribution?

Correct Answer: D

All listed properties influence biodistribution.

Q15. Nanotechnology used in wound healing includes:

Correct Answer: A

Silver nanoparticles have antimicrobial properties.

Q16. Which of the following is NOT a nanomedicine drug delivery system?

Correct Answer: D

Tablets are conventional dosage forms.

Q17. Nanoparticle surface modification improves:

Correct Answer: A

Surface modifications can extend circulation.

Q18. Magnetic nanoparticles are used in:

Correct Answer: A

They enhance MRI contrast and allow guidance.

Q19. Nanoparticle aggregation can impact:

Correct Answer: D

Aggregation affects many biological behaviors.

Q20. Functionalizing nanoparticles with antibodies aids in:

Correct Answer: B

Antibodies provide specific targeting.

Q21. Quantum dots differ from bulk semiconductors due to:

Correct Answer: B

Quantum dots exhibit quantum size effects.

Q22. Polymeric nanoparticles are preferred due to their:

Correct Answer: B

Polymeric NPs degrade safely and allow release.

Q23. Which nanomaterial is used for gene delivery?

Correct Answer: D

Multiple materials serve as gene carriers.

Q24. Passive targeting exploits:

Correct Answer: B

Leaky tumor vessels enable passive targeting.

Q25. Nanotechnology allows drug delivery to:

Correct Answer: B

Nanocarriers improve targeting to diseased sites.

Q26. Nanoparticles can improve cancer therapy by:

Correct Answer: B

They enhance therapeutic selectivity and reduce toxicity.

Q27. Nanoparticles used in photothermal therapy absorb:

Correct Answer: B

Near-infrared light penetrates tissues effectively.

Q28. Biodegradable nanoparticles typically degrade via:

Correct Answer: A

Hydrolytic degradation is common in polymer NPs.

Q29. Nanoparticles size is typically:

Correct Answer: A

Nanomaterials usually fall within 1 to 100 nm scale.

Q30. Nanoshells are used for:

Correct Answer: B

Nanoshells have applications in therapy and imaging.

Q31. Gold nanoparticles exhibit:

Correct Answer: B

Gold NPs demonstrate surface plasmon resonance.

Q32. Nanotoxicity can be caused by:

Correct Answer: A

Toxicity depends on multiple particle properties.

Q33. Nanocarriers can cross biological barriers such as:

Correct Answer: D

Nanocarriers facilitate transport across various barriers.

Q34. Advantages of nanomedicine over conventional therapy include:

Correct Answer: D

All these advantages improve therapeutic outcomes.

Q35. What is the function of liposomes in drug delivery?

Correct Answer: B

Liposomes carry and release drugs selectively.

Q36. The term β€œfunctionalization” of nanoparticles means:

Correct Answer: A

Functional groups enhance targeting and stability.

Q37. Carbon nanotubes in medicine are noted for:

Correct Answer: A

They have unique electrical and mechanical properties.

Q38. Which nanoparticles are commonly used in MRI contrast agents?

Correct Answer: B

Iron oxide magnetic nanoparticles improve MRI contrast.

Q39. What property of nanoparticles greatly influences cellular uptake?

Correct Answer: A

Size and charge affect interaction with cells.

Q40. Which nanomaterial is most suitable for photodynamic therapy?

Correct Answer: C

Porphyrin nanoparticles generate reactive oxygen species.

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