Fig. 7From: Multi-functional conductive hydrogels based on heparin–polydopamine complex reduced graphene oxide for epidermal sensing and chronic wound healingSchematic representation of in vivo wound healing experiment process (A), Digital image of electrical stimulation treatment process (B), Photographs of wounds on day 0, 3, 7, 14 days from the different treatment (C), Wound closure rate as a function of time for each treated group (D)Back to article page