Fig. 9From: 3D printing of graphene-based polymeric nanocomposites for biomedical applicationsEvolution in time of the formation of (a) Connective tissue; (b) mineralized bone tissue; and (c) cumulative tissue formation (connective + bone tissues) on the PCL and PCL/0.78 wt% of graphene (G) scaffolds, with and without electrical stimulation (ES). NBR stands for “natural bone regeneration“or control group. Reproduced with permission from [106]Back to article page