Category of Hydrogels

Structure of polymer

Compositions

Properties

Ÿ Physical

Ÿ Chemical

Ÿ Graft copolymers

Ÿ Block copolymers

Ÿ Linear polymers

Ÿ Interpenetrating networks (IPNs)

Ÿ Polyblends

Ÿ Natural polymers and

Ÿ Synthetic polymers

Ÿ Combinations of natural and synthetic polymers

Ÿ Closed/open pores

Ÿ Water content and character

Ÿ Chemical modification ( having attached cell adhesion ligands)

Ÿ Addition of cells and/or drugs

Ÿ Sterilizability

Ÿ Mechanical strength

Ÿ Degradability

Ÿ Injectability

Ÿ Ease of handling