Figure 1.

Design of 3D electrospun nanofiber scaffold.

Notes: (A) Light micrographs of different views of PCL electrospun 3D scaffold showing a superposition of thin layers made of nanofibers and interconnected macroporosity. (B) SEM observation of the porosity and the thin superposed layers of electropsun PCL constituting the 3D PCL (magnification of inset in A). (C) SEM observation of PCL nanofibers constituting thin layers of scaffold A, showing the nanoscale diameter of fibers (magnification of inset in B). (D) Parameters of the biodegradable 3D PCL membrane: Fiber diameter, pore length and height, and porosity. Porosity was estimated by weight and volume of the sample. Scale bars =1 mm (A); 500 µm (B); 2 µm (C).

Abbreviations: PCL, poly(ε-caprolactone); SEM, scanning electron microscope.