Fig. 2From: Angiogenin-loaded fibrin/bone powder composite scaffold for vascularized bone regenerationCharacterization of fibrin glue/bone powder scaffold. Scanning electron microscopy (SEM) showed that the polymerized fibrin formed a layer and branched among the bone powder particles. In addition, the fibrin layer contained numerous micron-sized pores (a). The porosity (b) and compressive strength (c) were not affected by ANG loading in the scaffoldBack to article page