Fig. 3From: Angiogenin-loaded fibrin/bone powder composite scaffold for vascularized bone regeneration In vitro cumulative release of angiogenin (ANG) from scaffolds. The values represent the mean ± standard deviation (SD). At 7 days, approximately 0.4 μg and 1.3 μg of the ANG were released from the FB/ANG 0.5 and FB/ANG 2.0, respectively. Then the sustained slow release was observed until 25 days. The data shown are the mean ± SDBack to article page