Hydrogels were freshly prepared in situ on a 20-mm wide steel plate with parallel geometry of a Malvern Kinexus Ultra Plus Rheometer (Alfatest, Milan, Italy) equipped with a Peltier temperature controller. Time sweeps were performed at 1 Hz and 1 Pa at 25 °C. Frequency sweeps were performed at 1 Pa and 25 °C. Stress sweeps were registered at 1 Hz and 25 °C.