Fig. 4. UV protection effectiveness of free OMC and microencapsulated OMC/ZIF-8. (A) UV absorbance variations of free OMC under UV irradiation. (B) UV absorbance variations of microencapsulated OMC in ZIF-8 under UV irradiation. (C) UV absorbance efficiency of OMC/water, OMC/oil, OMC/ethanol and OMC/ZIF-8 at OMC concentration of 0.01 g L−1 (D) ROS formation as measured by DHR fluorescence after UV irradiation. DHR was incubated with OMC/ZIF-8, blank ZIF-8, free OMC and PBS control.
