Fig. 1

Chemical structure of BA (a); Macrograph of the hydrogel (b); FESEM image of the nanoparticles (c); TEM image of the nanoparticles (d); The hydrodynamic diameters of the nanoparticles (e); The zeta potential of the nanoparticles (f); The storage modulus (G′) and loss modulus (G″) of the hydrogel as a function of angular frequency at 25 °C and 37 °C (g); The storage modulus (G′) and loss modulus (G″) of hydrogel at 25 °C and 37 °C in 600 s (h)