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Schematic of 4 arm PEG hydrogel functionalized with adhesive peptides and protease-degradable crosslinker. (A) PEG-4MAL is functionalized with adhesive peptides bound to thiol groups. (B). PEG-4MAL functionalized with adhesive peptides reacts with protease degradable crosslinks forming (C) the fully functionalize hydrogel allowing for cellular adhesion and degradation.
