Fig. 3. Mechanical properties Gr-AP scaffolds at two different architectures of aligned and random fibers: (A) representative stress–strain curves of aligned and random fibrous Gr-AP scaffolds. (B) Representative stress–strain curves of aligned fibrous Gr-AP scaffolds in two different directions: in parallel (PL) and perpendicular (PP) to the aligned oriented fibers. The average (C) tensile modulus and (D) toughness of the fibrous scaffolds (*P < 0.01) were measured and depicted for comparison. (E) The schematic illustration of aligned and random fibrous scaffolds during the stretching of the contact point of fibers.
