free radical

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Are we treating arthritis by suppressing the protective inflammation brought about by years of free radical damage?
我们是通过抑制自由基多年伤害带来的炎症来治疗关节炎吗？
This nasty free radical causes structural damage to your cells, and such damage is thought to be one of the primary causes of cancer.
这讨厌的自由基会导致你细胞的结构性破坏，这种损害被认为是患癌症主要原因之一。
“Maybe the reason why free radicals and aging are correlated is because free radical production in the mitochondria (part of the cell) is a stress reaction to the damage of aging,” Hekimi said.
海克米说：“人们之所以把自由基和衰老联系在一起，可能是因为自由基在线粒体（细胞的一部分）中产生是人体对衰老的应激反应。

Eliminating free radical production would involve completely redesigning aspects of our metabolism, especially the way we use oxygen to extract energy from food.
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What makes a free radical so reactive, however, is that unlike most molecules it has an odd number of electrons—and electrons prefer to arrange themselves in pairs.
ECONOMIST: Carbon balls to a radical rescue
On meeting a buckyball, a free radical grabs at the bounty of electrons smeared across the bucky's surface, but cannot break it—so the radical stays stuck to it like a leech.
ECONOMIST: Carbon balls to a radical rescue

a molecule that has an extra electron and therefore reacts very easily with other molecules

Free radicals are atoms that contain one or more unpaired electrons. Free radicals are believed to be a cause of aging, heart disease, and some cancers.

自由基
Miniature free radical polymerization is an experiment of low cost and easy to be applied into polymer teaching experiments.
采用微型实验进行自由基聚合是一种低成本、绿色实验,适用于教学实验,并有利于发展成设计型和综合型实验。
游离基