Radical (chemistry)
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In chemistry, a radical, also known as a free radical, is an atom, molecule, or ion that has at least one unpaired valence electron. With some exceptions, these unpaired electrons make radicals highly
The deep colour of lithium naphthalenide results from the lithium naphthanide radical.
Moses Gomberg (1866–1947), the founder of radical chemistry
Free-radical theory of aging
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The free radical theory of aging, first proposed by American biogerontologist Denham Harman in the 1950s, states that organisms age because cells accumulate free radical damage over time. A free radic
Radical (chemistry)
…free-radical-related symptoms including movement disorder, psychosis, skin pigmentary melanin abnormalities, deafness, arthritis, and diabetes mellitus. The free-radical theory of aging proposes that radicals underlie the aging process. Similarly, the process of mitohormesis suggests that repeated exposure to radicals may extend life…
In chemistry, a free radical is any atom, molecule or ion with an unpaired valence electron.
Major sources of reactive oxygen species in living systems