*2.2. Cryogels*

The final recovered cryogels from the modified PSs, obtained as illustrated on Section 4.2, showed different structures depending on the mediator TEMPO/laccase ratio in Table 1; therefore, samples A and B both showed fragile textures as fluffy and easy water dispersible matrices (sample B in Figure 3a); by contrast, sample C evidenced a compact and reinforced structure, as shown in Figure 3b.

**Figure 3.** Cryogels from the modified PS as obtained from variable 2,2,6,6-tetramethyl-1-piperidinyl-1- oxy radical (TEMPO)/laccase ratio as shown in Table 1: (**a**) sample B; (**b**) sample C.
