Fig. 7From: Effect of photoinitiator on chain degradation of hyaluronic acida Schematic presentaion on the degradation of HA/Tyr hydrogel by ROS derived from RF-based photochemistry. b Photographs of photocrosslinked HA/Tyr 25 hydrogel (0.5, 1.0, 1.5 and 2.0 wt%) showing the decomposition behavior over time under 0.5 mM RF, 100 mM SPS and 30 s irradiation timeBack to article page