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. Author manuscript; available in PMC: 2010 Jul 20.
Published in final edited form as: J Control Release. 2009 Mar 31;137(2):152–159. doi: 10.1016/j.jconrel.2009.03.016

Fig. 3.

Fig. 3

Influence of strain (A) and frequency (B) on G′ and G″ of hydrogels. The rheological measurements were carried out on 3% and 5% (w/v) hydrogels prepared using copolymer and crosslinker in 1:1 stoichiometry. The strain sweep test establishes the regime of linear viscoelasticity (LVE). The frequency sweep test shows that the hydrogels are more elastic than viscous and that they have the ability to resist structural changes under strain.