“…Second, the potential of the composite hydrogel to absorb ROS in an ischemia‐reperfusion model was demonstrated. As the presence of ROS within the LV expands the injury, leading to extensive cell death, [ 6 , 39 , 40 , 41 , 42 ] inflammation [ 41 , 64 , 65 ] and, overall, to progressive damage, the ability to eliminate ROS may be extremely beneficial for treating MI and other heart diseases, as well as other injuries in different organs. Our results indicate that injection of the composite complex leads to cardioprotection within the LV, which, in turn, leads to the preservation of heart structure and function.…”