Research Paper Volume 15, Issue 23 pp 14292—14305

Delivering umbilical cord mesenchymal stem cell exosomes through hydrogel ameliorates vaginal atrophy in ovariectomized rats

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Figure 4. Characterization of exosome hydrogel. (A) Morphology of hyaluronic acid hydrogel post photopolymerization; (B) Cross-sectional view of hyaluronic acid hydrogel presenting a loose, porous structure under scanning electron microscopy; (C) Release curve of exosomes from the exosome hydrogel over 14 days; (D) Live/dead cell staining of VK2 cells cultured on the hyaluronic acid hydrogel. (E) Determination of cell viability by co-incubation of vk2 cells and hydrogels.