Figure 6: Left side, (a) Clotting time of cellulose hydrogel films prepared with different contents of LiCl, (b) Protein adhesion on cellulose hydrogel films. The error bars indicate the standard error ±. Right side,SEM images of hydrogel films surface treated with platelet. The LiCl content used was (c) 4 wt%, (d) 10 wt%, and (e) 12 wt%.