Fig. 1

Nanofiber characterizations and mechanical properties. A Characteristics of the nanofiber-covered stents. (a) Schematic diagram of stent-graft fabrication, (b) the nanofiber-covered stent, and (c) SEM images of the nanofiber mats. Scale bar, 10 µm. (d,e) TEM image of the core–shell structure. Scale bar, 250 nm and 20 nm. B Diameter distribution of the nanofiber mats. Scale bar, 25 µm