Fig. 2From: miR-126-3p-loaded small extracellular vesicles secreted by urine-derived stem cells released from a phototriggered imine crosslink hydrogel could enhance vaginal epithelization after vaginoplastyCharacterization of piGEL and piGEL-sEVs. A Schematic diagram of the phototriggered imine crosslinking (PIC) mechanism for the integration of hydrogels and tissue. B Curve of release nanoparticles of piGEL-sEVs over 8 days. C Live/dead staining of VK2 cells cultured on piGEL. Scale bar: 100 µmBack to article page