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A nanoparticle-based drug delivery system aims to

  • A.replace the drug with a nanomaterial
  • B.prevent the drug from dissolving at all
  • C.carry the drug to its target and release it there
  • D.increase the total dose the patient receives

Answer: C

Correct answer: carry the drug to its target and release it there

The object is to change where the drug goes rather than what it is: a carrier that circulates, accumulates preferentially at the target - often by exploiting the leaky vasculature of a tumour - and releases its cargo there. The benefit is a lower dose and less exposure of healthy tissue, not a larger dose.

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