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2. Reactive oxygen species - Wikipedia

   en.wikipedia.org/wiki/Reactive_oxygen_species

   In chemistry and biology, reactive oxygen species ( ROS) are highly reactive chemicals formed from diatomic oxygen ( O2 ), water, and hydrogen peroxide. Some prominent ROS are hydroperoxide (O 2 H), superoxide (O 2- ), [1] hydroxyl radical (OH. ), and singlet oxygen. [2] ROS are pervasive because they are readily produced from O 2, which is ...

3. Allotropes of oxygen - Wikipedia

   en.wikipedia.org/wiki/Allotropes_of_oxygen

   There are several known allotropes of oxygen. The most familiar is molecular oxygen ( O2 ), present at significant levels in Earth's atmosphere and also known as dioxygen or triplet oxygen. Another is the highly reactive ozone ( O3 ). Others are: Atomic oxygen ( O1 ), a free radical. Singlet oxygen ( O*. 2 ), one of two metastable states of ...

4. Organic peroxides - Wikipedia

   en.wikipedia.org/wiki/Organic_peroxides

   In general, energy content increases with active oxygen content, and thus the higher the molecular weight of the organic groups, the lower the energy content and, usually, the lower the hazard. The term active oxygen is used to specify the amount of peroxide present in any organic peroxide formulation. One of the oxygen atoms in each peroxide ...

5. Oxygen compounds - Wikipedia

   en.wikipedia.org/wiki/Oxygen_compounds

   Oxygen compounds. Water (H O) is the most familiar oxygen compound. The oxidation state of oxygen is −2 in almost all known compounds of oxygen. The oxidation state −1 is found in a few compounds such as peroxides. Compounds containing oxygen in other oxidation states are very uncommon: − ( superoxides ), − ( ozonides ), 0 (elemental ...

6. Respiratory burst - Wikipedia

   en.wikipedia.org/wiki/Respiratory_burst

   Respiratory burst (or oxidative burst) is the rapid release of the reactive oxygen species (ROS), superoxide anion ( O−. 2) and hydrogen peroxide ( H. 2O. 2 ), from different cell types. This is usually utilised for mammalian immunological defence, but also plays a role in cell signalling. Respiratory burst is also implicated in the ovum of ...

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