Fig. 5
![Fig. 5](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12951-022-01268-1/MediaObjects/12951_2022_1268_Fig5_HTML.png)
Histological analysis of the NanoGraft showing an increase in neocapillary formation, elastin, collagen, and glycosaminoglycans after 2 and 4Â weeks of implantation. a H&E staining b Masson-Trichrome staining for collagen (bluish-green) c Verhoeff-Van Gieson staining for elastin content (blue-black) and d Alcian blue stain for mucopolysaccharide (light blue)