The thermosensitive property of GFs-HP hydrogel. A, C. Visualization of the state
of HP and GFs-HP respectively at different temperatures (4°C,
37°C and 4°C after 37°C). At 37°C, both
hydrogels are clearly in a gel state, while at 4°C before or after
heating, both hydrogels are clearly in a sol state. B, D. Storage (G′)
and loss (G″) moduli as rheological markers in temperatures ranging from
10 to 40°C for HP and GFs-HP hydrogels, respectively. Results show that
the temperature of gel-sol phase transition for HP is slightly higher than that
of GFs-HP, but both are well below 37°C.