Fig. 8From: Multi-functional conductive hydrogels based on heparin–polydopamine complex reduced graphene oxide for epidermal sensing and chronic wound healingHematoxylin & eosin and Masson staining of the sections of the regenerated tissues at the wound site on day 14 for the different treated groups. Scab (white arrow), blood vessels (red arrow), fibroblasts (yellow arrow), neutrophils (blue arrow), hair follicles (green arrow), and collagen deposition (orange arrow)Back to article page