(University of Illinois at Urbana-Champaign) Oxidants found within living organisms are byproducts of metabolism and are essential to wound-healing and immunity. However, when their concentrations become too high, inflammation and tissue damage can occur. University of Illinois engineers have developed and tested a new drug-delivery system that senses high oxidant levels and responds by administering just the right amount of antioxidant to restore this delicate balance.

Original source: https://www.eurekalert.org/pub_releases/2019-04/uoia-sap041619.php