Figure 2.

Rheological properties of three varying PNP formulations. PNP hydrogel formulations are denoted as polymer wt.%: NP wt.%. (a) Steady shear flow sweeps from low to high shear rate of PNP hydrogels. Viscosity as a function of shear rate characterizes shear‐thinning properties. (b) Viscosity as a function of oscillating shear rates between low (white background) 0.1 s⁻¹ shear rates to high (red background) 10 s⁻¹ shear rates demonstrating self‐healing properties of PNP hydrogels. Shear rates are imposed for 30 s each. (c) Elastic storage modulus G′ and viscous loss modulus G″ as a function of frequency at a constant 2 μNm torque (1.27 Pa) for various PNP hydrogels. (d) Amplitude sweeps at a constant frequency of 10 rad/s. Elastic storage modulus G′ and viscous loss modulus G″ of PNP hydrogels as a function of stress