Fig. 5From: Synergistic effect of chitosan-alginate composite hydrogel enriched with ascorbic acid and alpha-tocopherol under hypoxic conditions on the behavior of mesenchymal stem cells for wound healingThe pictures of the dynamic contact angle on a CA, b CA/AA, c CA/TP, and d CA/AA/TP composite hydrogels at different time points. e and f show the calculated contact angles for samples CA/TP and CA/AA/TP, respectivelyBack to article page