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Enzymatic degradation profiles of type A gelatin-PEG hydrogels (A, GA5P5 (◆) vs. GA15P5 (△); B, GA10P5 (■) vs. GA10P10 (○) and type B gelatin-PEG hydrogels (C, GB5P5 (◆) vs. GB15P5 (△); D, GB10P5 (■) vs. GB10P10 (○)). The degradation profile of each formulation incubated with type I collagenase (solid line) was compared with hydrogel incubated in PBS (dashed line).
