Fig. 2

PF-127/hADSCs-Exos complexes allow the stable release of hADSCs-Exos. a Schematic representation of the experimental approach. b The cumulative release ratio of hADSCs-Exos was detected by protein quantification. c PKH26-labeled hADSCs-Exos retention in the site of the wound. Scale bar = 20 μm. d Local magnification of the focal zone in (c). PKH26-labeled hADSCs-Exos (red) and DAPI (blue). Arrows indicate hADSCs-Exos. Scale bar = 5 μm