Fig. 1.

Schematic representation of sequential steps of manufacturing bilayer vascular grafts. (A) Preparation of ink containing PCL, PGS, and various compositions of the modified BGs. (B) Fabrication of the first layer of vascular grafts by 3D-printing technique, their therapeutic effects, and macroscopic side view images of 3D-printed P:P and P:P:Bs vascular grafts. (C) Fabrication of the second layer of vascular grafts by electrospinning technique and macroscopic side view image of the vascular graft.