Fig. 1. Structural properties of aligned fibrous Gr-AP (A:Gr-AP) scaffolds: (A) schematic of electrospinning approach for the controlled design of aligned oriented fibrous scaffolds. (B) Representation of the graphene distribution and interaction with AP polymeric matrix after crosslinking process. (C) SEM images (at two different magnifications) and FFT image of aligned fibrous scaffold before crosslinking process. (D) TEM image of well-distributed graphene within AP fibers. (E) SEM and FFT image of random fibrous Gr-AP scaffold, before crosslinking process. (F) The average fiber size of aligned and random fibrous scaffolds before and after crosslinking. (G) Radial plot of the relative pixel intensity at a radius versus the angle (°) caused by the inherent symmetry of the raw 2-D FFT output. (H) The average orientation index of fibrous scaffolds, revealing that aligned fibers enhanced fiber orientation (*P < 0.05).