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In vitro cytocompatibility of elastic hydrogels. (A) Live and dead stained 3T3 fibroblasts encapsulated in PEG-DA and PEG–PCL(24k)-DA hydrogels after 1 day and 3 days of culture. (B) Cell viability calculated as percentage of live cells (green) from the live and dead staining images. (C) Metabolic index of 3T3 fibroblasts encapsulated in PEG-DA and PEG–PCL(24k)-DA hydrogels.
