In which of the following are hydrogels used?
- Controlled drug delivery in patients
- Mobile air-conditioning systems
- Preparation of industrial lubricants Select the correct answer using the code given below:
Correct Answer: Option D
Hydrogels are cross-linked polymeric networks that can absorb large amounts of water or biological fluids.
Statement 1 is correct: Hydrogels are used in controlled drug delivery due to their high biocompatibility, ability to protect drugs, and capability for spatiotemporal control of drug release. Their porosity and compatibility with aqueous environments make them excellent drug delivery vehicles.
Statement 2 is correct: Hydrogels can be used in mobile air-conditioning systems due to their water-absorbing properties, which can help in cooling electronic components.
Statement 3 is correct: Research indicates that hydrogels can be used as industrial lubricants because of their excellent anti-friction and anti-wear properties.
Therefore, the correct answer is d: 1, 2 and 3.