Oxidation

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oxidation

[‚äk·sə′dā·shən]
(chemistry)
A chemical reaction that increases the oxygen content of a compound.
A chemical reaction in which a compound or radical loses electrons, that is in which the positive valence is increased.

Oxidation

 

in the most limited sense, the combining of any substance with oxygen. Generally speaking, “oxidation” describes any chemical reaction that basically involves the removal of electrons from atoms or ions. The most important common oxidizing agents are oxygen (O2), ozone (O3), hydrogen peroxide (H2O2), chlorine (Cl2), fluorine (F2), potassium permanganate (KMnO4), perchloric acid (HClO4), and nitric acid (HNO3).

oxidation

Reaction of a chemical compound with oxygen, as in a paint film in which oil reacts with oxygen to form a hard dry film.
References in periodicals archive ?
These oxidatively modified erythrocytes were observed in blood samples obtained from septic patients using optical microscopy and scanning electron microscopy.
The amount of oxidatively modified HDL particles (oxHDL) is associated with protein-energy wasting in patients undergoing hemodialysis [81].
Presence of membrane-bound proteinases that preferentially degrade oxidatively damaged erythrocyte membrane proteins as secondary antioxidant defense.
Guanine (G) is the most common organic base attacked oxidatively by free radicals and is converted to 8-hydroxyguanin (8-OHG) [14].
Jojoba oil's superlative moisturizing characteristics and "dry" emolliency further increase its desirability as an ingredient in cosmeceuticals which are based on simple, natural, renewable botanical ingredients, yet are effective and oxidatively stable; i.
Stewart explained that the uniqueness of Bayer's materials is in the composition of the hydroxyl functional PUD, blocked polyisocyanate and oxidatively curing PUD.
Of note, the accumulation of lipofuscin within the RPE cells increases as a result of incomplete digestion of oxidatively damaged photoreceptor outer segment membranes.
Results from a second study showed a significantly higher level of IgM that reacted against an oxidatively modified form of tryptophan in patients with new-onset major depressive disorder.
The presence of autoantibodies against oxidatively modified low density lipoproteins and increased prostacycline levels suggests endothelial dysfunction.
Brett can oxidatively metabolize the amino acid proline, ubiquitous in wine, as a sole source of both carbon and nitrogen.
Excision of oxidatively damaged DNA bases by the human alpha-hOgg1 protein and the polymorphic--hOgg1[Ser326Cys] protein which is frequently found in human populations.
In addition to the formation of DNA damage by exogenous exposures to PAHs, it is known that DNA is modified, often oxidatively, by radicals.