Figure 2
From: High strength and low swelling composite hydrogels from gelatin and delignified wood
Photographs of (a) delignified wood, (b) gelatin and (c) delignified wood/gelatin hydrogel. (d) SEM image of freeze-dried delignified wood, showing the well-preserved cellular structure. (e) Optical microscopy image of delignified wood/gelatin composite hydrogel in wet state with initial gelatin and genipin concentrations of 30 wt% and 100 mM.
