Skip to main content
. Author manuscript; available in PMC: 2021 Aug 6.
Published in final edited form as: ACS Biomater Sci Eng. 2021 Apr 30;7(6):2204–2211. doi: 10.1021/acsbiomaterials.1c00344

Figure 2.

Figure 2.

3D expanded nanofiber scaffold fabrication and characterization. (a) Photograph showing PCL nanofiber stripes (4 cm × 1.5 mm × 1 mm) before expansion. (b) Photograph showing a 3D expanded PCL nanofiber scaffold (4 cm × 1.5 mm × 2 cm). (c) SEM images showing 3D expanded PCL nanofiber scaffolds without 0.05% GelMA coating, indicating the porous and layered structure. (d) SEM images showing 3D expanded PCL nanofiber scaffolds with 0.05% GelMA coating, indicating the formation of hybrid nanofiber scaffolds with a porous and layered structure. Red arrows indicate the direction of fiber alignment. Green arrow heads indicate the formation of GelMA nanofibers.