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ROS can be grouped into oxygen-centered radicals: hydroxyl radical (·OH), peroxyl radical (ROO·), alkoxyl radical (RO·), superoxide anion (·O 2 –) and oxygen-centered non-radicals: singlet oxygen ( 1 O 2 ) and hydrogen peroxide (H 2 O 2 ) [ 3 ].
Source: wiktionary
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.