UPSC Prelims 2024 · Question 96 of 97

UPSC Prelims 2024 question on Hydrogel Uses

In which of the following are hydrogels used?

1. Controlled drug delivery in patients
2. Mobile air-conditioning systems
3. Preparation of industrial lubricants

Select the correct answer using the code given below:

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

Answer: D. 1, 2 and 3

Verdict

All three uses are correct → Option (d).

Analysis

Hydrogels are cross-linked polymeric networks swollen in biological fluid. They are widely used in the field of medicine. Their uses are varied.

Use 1 – CORRECT: Hydrophilic polymeric networks capable of imbibing huge volumes of water and undergoing swelling and shrinkage suitably to facilitate controlled drug-release are called hydrogels. Their porosity and compatibility with aqueous environments make them highly attractive bio-compatible drug delivery vehicles.

Use 2 – CORRECT: Due to its water-absorbing properties, hydrogels may be used to cool down electronic items (mobile air-conditioning systems).

Use 3 – CORRECT: Researches show hydrogels can be used as lubricants because of their excellent anti-friction and anti-wear properties.

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