Figure 5.

Neuronal regeneration in a magnetic-responsive 3D hydrogel system. (a) Schematic presentation of magnetic-driven neuronal regeneration. SEM images of (b) random collagen fiber orientation from spontaneous solidified suspension; (c) aligned collagen fiber from magnetic field-directed solidified suspension. Confocal reflectance microscopy images of (d) random collagen fiber orientation from spontaneous solidified suspension; (e) aligned collagen fiber (light blue) from magnetic field-directed solidified suspension. Reproduced from [40], with permission from © 2016 American Chemical Society.