This figure shows the result for storage modulus of different hydrogel samples.
The storage modulus or G’ is a value that relates to the mechanical strength of the materials. The material with higher storage modulus had stronger structure.
The result in this figure showed that the storage modulus of hydrogel is strongly dependent on the concentration of PEGDE used in the reaction. Entry 1, here, is the hydrogel prepared with the lowest PEGDE content had the lowest storage modulus. With the increasing in the PEGDE content the hydrogel had higher storage modulus indicating that the gel structure become stronger with an increase in the concentration of crosslinking agent