Medical dictionary. 2011.
Reactive oxygen species — (ROS) are ions or very small molecules that include oxygen ions, free radicals, and peroxides, both inorganic and organic. They are highly reactive due to the presence of unpaired valence shell electrons.ROS form as a natural byproduct of the… … Wikipedia
reactive oxygen species — Oxygen containing radical or reactive ions such as superoxide, singlet oxygen and hydroxyl radicals, the product of the respiratory burst in phagocytes and responsible for bacterial killing as well as incidental damage to surrounding tissue … Dictionary of molecular biology
Reactive nitrogen species — Reactions leading to generation of Nitric Oxide and Reactive Nitrogen Species. From Novo and Parola, 2008.[1] Reactive nitrogen species (RNS) are a family of antimicrobial molecules derived from … Wikipedia
Oxygen toxicity — Classification and external resources In 1942–43 the UK Government carried out extensive testing for oxygen toxicity in divers. The chamber is pressurised with air to 3.7 … Wikipedia
Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ … Wikipedia
Singlet oxygen — is the common name used for the two metastable states of molecular oxygen (O2) with higher energy than the ground state triplet oxygen [cite journal title = Physical and chemical properties of singlet molecular oxygen author = David R. Kearns… … Wikipedia
Compounds of oxygen — Water (H2O) is the most familiar oxygen compound The oxidation state f 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… … Wikipedia
Forme Réactive de l'Oxygène — Radical (chimie) Pour les articles homonymes, voir Radical. Un radical (souvent appelé radical libre) est une entité chimique possédant un ou plusieurs électrons non appariés sur sa couche externe. Il se note par un point. La présence d un… … Wikipédia en Français
oxygen — oxygenic /ok si jen ik/, oxygenous /ok sij euh neuhs/, adj. oxygenicity /ok si jeuh nis i tee/, n. /ok si jeuhn/, n. Chem. a colorless, odorless, gaseous element constituting about one fifth of the volume of the atmosphere and present in a… … Universalium
ROS — Reactive Oxygen Species (Academic & Science » Chemistry) Reactive Oxygen Species (Academic & Science » Chemistry) * Return On Sales (Business » General) * Recreation Opportunity Spectrum (Community » Sports) * Review of systems (Medical »… … Abbreviations dictionary
