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Radical polymerisation of unsaturated monomers is generally propagated by C-radicals. These can be effectively terminated by combining with other radicals to form neutral species and many true inhibitors operate through this mechanism. In the simplest example oxygen can be used as it exists naturally in its triplet state (i.e. it is a diradical).
Free-radicals are not the enemy that popular culture has made them out to be, as they aid in proper biochemical signaling that make them necessary in a healthy immune system. Several complex biological free-radical collection systems already exist for the purpose of scavenging, which normally, do not require augmentation by supplementation of ...
Oxidative stress mechanisms in tissue injury. Free radical toxicity induced by xenobiotics and the subsequent detoxification by cellular enzymes (termination).. Oxidative stress reflects an imbalance between the systemic manifestation of reactive oxygen species and a biological system's ability to readily detoxify the reactive intermediates or to repair the resulting damage. [1]
Ditto for terms like "gluten-free," "all-natural," "probiotic ... also for containing properties or ingredients that can improve or prevent disease. ... antioxidants that combat free radicals."
Phosphites: Act by decomposing peroxides into non-radical products, thus preventing further generation of free radicals, and contributing to the overall oxidate stability of the polymer. Phosphites are often used in combination with phenolic antioxidants for syngeristic effects. Example: tris(2,4-di-tert-butylphenyl)phosphite [citation needed]
BHT is widely used to prevent free radical-mediated oxidation in fluids (e.g. fuels, oils) and other materials, and the regulations overseen by the U.S. F.D.A.—which considers BHT to be "generally recognized as safe"—allow small amounts to be added to foods.
In a supplement, it serves as an antioxidant to combat free-radical damage and works wonders on acne-prone skin. Vitamin D. Many people experience a lack of vitamin D during the winter, as sun ...
The free radical theory of aging states that organisms age because cells accumulate free radical damage over time. [1] A free radical is any atom or molecule that has a single unpaired electron in an outer shell. [2] While a few free radicals such as melanin are not chemically reactive, most biologically relevant free radicals are highly ...