Fig. 5

A Morphology of NSCs under a light microscope. Left: ruler: 200 μm; right: ruler: 100 μm. B Nestin immunofluorescence identification of NSCs. C Live and dead cell staining of NSCs on NGP hydrogels; scale bar lengths are 100 μm. D Cell proliferation of NSCs cultured in the control, NGP, DPL and NGP + DPL groups, *P < 0.05, error bars represent the standard deviation for n = 3