*3.6. Thermal Stability*

The thermal stability of collagen was determined from differential scanning calorimetry (DSC) and TGA analysis [35]. In brief, the DSC spectrum was obtained by scanning the collagen samples from 20 to 120 ◦C using a differential scanning calorimeter (Model-DSC822e, Mettler-Toledo GmbH, Greifensee, Switzerland). For TGA Analysis, the samples were scanned using a TG 209 F1 analyzer (NETZSCH-Geratebau GmbH, Selb, Germany) from 0 to 650 ◦C at a rate of 10 ◦C min−<sup>1</sup> in a nitrogen atmosphere.
