Fig. 1From: Synergistic regenerative therapy of thin endometrium by human placenta-derived mesenchymal stem cells encapsulated within hyaluronic acid hydrogelsFabrication and characterization of HA hydrogel. A The synthesis routine of GM-HA. B The 1H-NMR spectrum of GM-HA in D2O. C Schematic presentation of preparation procedures of HA hydrogel and HP-MSCs-HA as well as the instillation of HP-MSCs-HA into a mouse model. D The FT-IR spectra of GM-HA and HA hydrogel. E The storage modulus G’ and loss modulus G’’ of HA hydrogel versus oscillation frequency from 0.01 to 100 rad/s with a fixed stain of 0.2% at 37 °C. F SEM morphology of freeze-dried HA. G SEM morphology of HA hydrogel. The scale bars in (F) and (G) were 100 μmBack to article page