Marina Andjelkovic's Blog (1)

Hydrogels are hydrophilic cross-linked polymer chains.

They are formed through physical, ionic or covalent interactions.

Due to hydrophilicity, they have the ability to absorb water and swell growing in weight and size.

Depending on the hydrogel type they can absorb and hold up to even 1500 of their weight. Similarly, they can release this water.

The speed of water absorption depends on the type of the hydrogel. Some of the synthetic polymers can take up to 6…