Fig. 2

The change in absorbance of PVA-Tyr during HRP/H₂O₂–mediated polymerization in PBS at 37 °C at 325 nm via UV-vis spectrophotometry over time with a varying HRP (U/mL) and constant H₂O₂ (6 mM) and (b) a constant HRP (0.2 U/mL) and varying H₂O₂ (mM). After gelation, hydrogels were swollen and the c mass loss, d swelling, and e dynamic shear modulus (G*) were measured after 48 h at 37 °C. Significance (p < 0.05) is denoted in bar graphs C-E with an asterisk (*)