Fig. 4

The change in absorbance of PVA-Tyr during laccase-mediated polymerization in PBS at 37 °C at 325 nm via UV-vis spectrophotometry over time (a). After gelation, hydrogels were swollen and the b mass loss, c swelling, and d dynamic shear modulus (G*) were measured after 48 h at 37 °C. Significance (p < 0.05) is denoted in bar graphs B-D with an asterisk (*)