Fig. 2

A–F Representative images of HUCMSCs cultured with 3D-CH-IB-ST scaffolds by phase contrast microscopy (A, B), SEM (C, D) and HE staining (E, F). G MTT analysis was performed after 1, 3, 5, and 7 days of HUCMSC cultured with 3D-CH-IB-ST. H, I MTT analysis H and cell adhesion rate I of NSCs cultured with 3D-CH-IB-ST. J–Q Immunofluorescence staining of NF, GAP43, Tuj-1, and NeuN in NSCs cultured with 3D-CH-IB-ST. ^*P < 0.05, ^**P < 0.01 versus 3D-CH-ST group