Characteristics of soy and PCL scaffolds. (A) A representative SEM of a soy scaffold. (B) A representative SEM of a soy scaffold postcrosslinking. (C) A representative SEM of a PCL scaffold. (D) Observed diameter (mean ± SD) of a PCL scaffold, soy scaffold, and soy scaffold after crosslinking (X-linked). Scale bar = 5 μm. PCL, polycaprolactone; SD, standard deviation; SEM, scanning electron microscope.