Fig. 1From: Graphene Family Materials in Bone Tissue Regeneration: Perspectives and ChallengesRepresentative HE-stained images of major organs (implantation region, liver, and kidney collected from the rats) implanted with graphene foams, GO foams, or nothing at day 14 post-implantation. No obvious organ damage or lesion was observed. Reproduced from ref. [40] with permission from the Journal of Nanoparticle ResearchBack to article page