Figure 3.

(a) BSA DC gel could bear a 5 kg weight without breakage (a₁), and BSA DC gel could also sustain its own weight without bending, while BSA PC gel and BSA CC gel were bent (a₂); (b) compressive and (c) uniaxial tensile stress–stain curves of the three BSA gels; (d) compressive modulus and compressive strength and (e) tensile modulus and tensile strength of the three BSA gels.