英:[ˌfriː ˈrædɪkl]
美:[ˌfriː ˈrædɪkl]
英:[ˌfriː ˈrædɪkl]
美:[ˌfriː ˈrædɪkl]
自由基,游离基;
noun
an especially reactive atom or group of atoms that has one or more unpaired electronsespecially: one that is produced in the body by natural biological processes or introduced from an outside source (such as tobacco smoke, toxins, or pollutants) and that can damage cells, proteins, and DNA by altering their chemical structure
自由基
自由基
自由基是外层电子轨道上有单个不配对电子的原子、原子团和分子的总称
自由基
自由基
The first known use of free radical was in 1870
free radicalnoun
an especially reactive atom or group of atoms that has one or more unpaired electronsespecially: one that is produced in the body by natural biological processes or introduced from outside (as in tobacco smoke, toxins, or pollutants) and that can damage cells, proteins, and DNA by altering their chemical structure
1 When oxyhydrogen free radical release the dummy man smell, directs effectively the mosquito.
氢氧自由基释放时模拟人体气味, 有效把蚊子引过来.
2 It is a kind of multifunctional natural active substance and can dispel free radical.
迷迭香酸是一种多功能的天然活性物质,具有非常好的祛除自由基抗炎效果.
3 Secondary inflammatory reaction and free radical damage existed in the tissue around intracerebral hemorrhage.
脑出血后血肿周围存在继发炎性反应与自由基损伤.
4 Can eliminate the free radical, suppresses the cancer cell formation, enhances the human body immunity.
能清除自由基, 抑制癌细胞形成, 提高人体免疫力.
5 Result: The correlative relationship between DPPH free radical scavenging activity and baicalin content was obtained.
结果: 黄芩提取物的清除DPPH自由基活性与黄芩苷含量呈相关关系.
6 The free radical [ OH ] had strong oxidation ability, which oxidated and removed organic infectant from wastewater.
游离 基有极强的氧化能力, 可将废水中的有机污染物氧化去除.
7 Termination of free radical chairs occurs by a bimolecular reaction.
自由基链的终止产生于双分子反应.
8 Objective : To study antagonism effect of Xinnaoshenli against free radical.
目的: 探讨心脑神力口服液体外抗自由基的效果.
9 This reaction has been classified as a free radical chain process.
这种反应是按自由基连锁反应的历程进行分类的.
10 Recently, living free radical polymerization is one of the fastest growing points in polymer chemistry.
近几年来, 活性自由基聚合已成为高分子研究领域中最热点的部分之一.
11 Studies also show that green tea is able to destroy free radical and reducing inflammation.
硏究显示绿茶能消毁自由机及缓和皮肤红肿.
12 Mitochondria play important roles in cellular energy metabolism, free radical generation and apoptosis.
线粒体在细胞能量代谢, 氧自由基生成和细胞凋亡中发挥重要作用.
13 A free radical is a molecular fragment having an unpaired electron.
自由基是一种具有未配对电子的分子碎体。
14 In addition, exercise may also reduce inflammation and the buildup of free radicals which tend to accelerate the advancement of processes that cause damage to the body, including the brain.
15 Objective To study the scavenging effect of Cheqiancao on oxygen free radical.
目的研究车前草对氧自由基的清除作用.
16 Abnormality of free radical production will lead many diseases.
自由基产生异常,将导致诸多疾病过程.
17 But the free radical can not induce a chain reaction in gas phase which contains SO 2.
而气相中的SO2与OH等 自由基作用不能形成链反应,所以影响不明显.
18 Treating the berries with alcohol increased in antioxidant capacity and free radical scavenging activity, they found.
治疗浆果用酒精增加抗氧化能力和清除自由基, 他们发现.
19 In some cases free radicals can be detected.
在某些情况下可以测出自由基来。
20 Offer against cerebral ischemic injury by combating free radical activity.
通过击自由分子的活动来提供大脑神经损伤的保护.