**Appendix A**

**Figure A1.** Rheological characterization of ALIPS9 and ALIG30@20 hydrogels after 48 h and 1 month. Up: flow curves (from 70 to 800 s<sup>−</sup>1, mean values <sup>±</sup> s.d., *<sup>n</sup>* <sup>=</sup> 6). Down: hysteresis areas (mean values <sup>±</sup> s.d., *<sup>n</sup>* <sup>=</sup> 6) and apparent viscosities (250 s<sup>−</sup>1, mean values <sup>±</sup> s.d., *<sup>n</sup>* <sup>=</sup> 6). Positive *AUC* values indicates thixotropic behavior, while negative ones correspond to anti-thixotropic profile.

**Table A1.** Amount of mobile elements released from the corresponding hydrogels into fibroblast cultures (MTT well-plate). Results were calculated from Franz experiments at 1 month and expressed in nanograms. NM stands for "Not Released".



**Table A1.** *Cont*.
