Fig. 4
From: Functional cobalt-doped hydrogel scaffold enhances concurrent vascularization and neurogenesis

In vitro vessel-like network formation in GelMA–MWCNTs/Co hydrogel. (A) Representative confocal images of HUVECs (CD31: green) and SCAP (SM22α: red) cocultured in the 3D GelMA and GelMA–MWCNTs/Co hydrogels for 7 and 14 d. (Nucleus: blue). Magnification of the yellow boxed area was shown in the lower panel. (B) Quantitive analysis of the average vessel length and total number of vessel junctions in the hydrogel scaffolds at the different time points. (∗p < 0.05, ∗∗p < 0.01. ∗∗∗p < 0.001, n = 3)