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In situ cross-linkable hydrogels as an artificial cellular microenvironment. Cross-linking strategies are detailed for each hydrogel system. Abbreviations: CD-HA, β-cyclodextrin-modified hyaluronic acid; FA, ferulic acid; GelMA, methacrylated gelatin; GtnFA, gelatin grafted with ferulic acid; HA, hyaluronic acid; MMP, matrix metalloproteinase; PEG, poly(ethylene glycol); PEG-diNHS, poly(ethylene glycol) conjugated to di(succinic acid N-hydroxysuccinimide ester).
