Biomaterial of the Month

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Date: June 1, 2007

Hydrogels

HydrogelsHydrogel is a network of polymer chains that are water-insoluble, sometimes found as a colloidal gel in which water is the dispersion medium. Hydrogels are superabsorbent (they can contain over 99% water) natural or synthetic polymers. Hydrogels possess also a degree of flexibility very similar to natural tissue, due to their significant water content.
Common uses for hydrogel are:

Other, less common uses include:

Common ingredients are eg. polyvinyl alcohol, sodium polyacrylate, acrylate polymers and copolymers with an abundance of hydrophilic groups. More information at: http://en.wikipedia.org/wiki/Hydrogels