Fig. 6From: Fabrication of SA/Gel/C scaffold with 3D bioprinting to generate micro-nano porosity structure for skin wound healing: a detailed animal in vivo studyRepresentative immunofluorescence images of cell nuclei (blue), angio-biomarkers CD31 (green) (A), CD206 (green) (B), PCNA (green) (C), and Cytokeratin AE1/AE3 (green) (D) in the control group and the scaffold group, respectively. Scale bars, 50 μmBack to article page