Outer Electrospun Polycaprolactone Shell Induces Massive Foreign Body Reaction and Impairs Axonal Regeneration through 3D Multichannel Chitosan Nerve Guides
Figure 2
Photomicrographs of CES and COM grafts. (a) On the left an isolated chitosan core (CES graft) and on the right a COM graft are shown (grid length 10 mm). ((b)–(d)) Electron micrographs of the pore structure in cross-sections of the isolated chitosan core (b) or the COM grafts (c) and of the porous surface of the PCL-nanofiber shell of a COM graft ((d), top view).