AUTHOR=Vitiello Giuseppe , Serpe Loredana , Blázquez-Castro Alfonso TITLE=Editorial: The Role of Reactive Oxygen Species in Chemical and Biochemical Processes JOURNAL=Frontiers in Chemistry VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2021.642523 DOI=10.3389/fchem.2021.642523 ISSN=2296-2646