UPSC Previous Year Question | Prelims GS | 2020

With reference to carbon nanotubes, consider the following statements: 1. They can be used as carriers of drugs and antigens in the human body. 2. They can be made into artificial blood capillaries for an injured part of human body. 3. They can be used in biochemical sensors. 4. Carbon nanotubes are biodegradable. Which of the statements given above are correct?

  1. 1 and 2 only
  2. 2, 3 and 4 only
  3. 1, 3 and 4 only
  4. 1, 2, 3 and 4

Answer

Correct Answer

1, 2, 3 and 4

Explanation

Carbon nanotubes are used for drug and antigen delivery, as biosensors, and in tissue engineering such as artificial blood vessels. Certain microbes and enzymes can degrade them, so they are considered biodegradable. All four statements are correct per the key.

Topics: applications of carbon nanotubes, carbon nanomaterials, nanotechnology & materials, science & technology