free radical

美 　英

• n.自由基；游離基
• 網(wǎng)絡(luò)氧自由基；對抗自由基；自由基或游離基

詞形變化

復(fù)數(shù)：free radicals  

英漢雙解

英漢解釋

na.	1. 【核】自由基,游離基

英英解釋

n.	1. a molecule that has an extra electron and can react very easily with other molecules. Free radicals sometimes form in the human body and can cause cancer.

例句

It is often related with increasing oxygen free radical, calcium overload and cell apoptosis.

缺血預(yù)適應(yīng)現(xiàn)象與再灌注后氧自由基生成增多、細(xì)胞內(nèi)鈣超載、細(xì)胞凋亡等有關(guān)。

The main antioxidant behavior of Ht was that in antioxidant system, Ht was as a strong electron donor or a free radical scavenger.

因此仙草在抗氧化體系中既是良好的電子供體，又是良好的自由基終止劑。

For one, superoxide is only one of several free radical species in the body.

其一，超氧化物只是人體中眾多自由基中的一種。

This nasty free radical causes structural damage to your cells, and such damage is thought to be one of the primary causes of cancer.

這討厭的自由基會導(dǎo)致你細(xì)胞的結(jié)構(gòu)性破壞，這種損害被認(rèn)為是患癌癥主要原因之一。

"If you manage to produce more energy with less free-radical production, then you can avoid aging and increase lifespan, " he said.

他說：“如果你能在在產(chǎn)生較多能量的前提下減少自由基的產(chǎn)出，那么你就可以避免衰老，同時(shí)你的壽命也會提高”。

Free radical damnification might be one of the liver injury mechanism of peppermint oil.

自由基損傷可能是其肝毒性機(jī)制之一。

Reduced glutathione in conjunction with the anthocyanidins is manufactured in Germany and is called SCAVE (free radical scavenger).

減少與谷胱甘肽結(jié)合花青素是在德國制造，被稱為SCAVE（自由基清除劑）。

Oxidative stress occurs in a cellular system when the production of free radical moieties exceeds the antioxidant capacity of that system.

當(dāng)細(xì)胞內(nèi)的自由基產(chǎn)物超出其自身的抗氧化能力時(shí)，便會產(chǎn)生氧化應(yīng)激。

Combustion is a chain reaction that may be initiated and propagated by free radicals like the hydroxyl free radical.

燃燒是一個(gè)連鎖反應(yīng)，能被自由基（如羥自由基）引發(fā)和傳播。

Results: The two extractives of Physalis alkekengi had a strong scavenging effect on DPPH free radical.

結(jié)果：錦燈籠乙醇和甲醇提取物對DPPH自由基的清除作用隨濃度的增加而增大。

At least one ion type monomer or ion type macromolecular compound is added in the course of free radical polymerization.

在所述的自由基聚合過程中，至少一種離子型單體或離子型高分子化合物被加入。

Are we treating arthritis by suppressing the protective inflammation brought about by years of free radical damage?

我們是通過抑制自由基多年傷害帶來的炎癥來治療關(guān)節(jié)炎嗎？

These antioxidants also fight against free radical damage that can occur within the brain as well as the body.

這些抗氧化劑還能夠對抗大腦內(nèi)及其它身體各部位的自由基損傷。

Recently, living free radical polymerization is one of the fastest growing points in polymer chemistry.

近幾年來，活性自由基聚合已成為高分子研究領(lǐng)域中最熱點(diǎn)的部分之一。

The pomegranate juice and apple juice had no evident effect on TAOC and concentration of free radical in the heart tissue of aged rats.

蘋果汁、石榴汁對老齡大鼠心臟抗氧化能力及自由基水平均無顯著性影響。

At least one hydrophobic monomer is added in the free radical polymerization process.

在所述的自由基聚合過程中，至少一種疏水性單體被加入。

The majority of vinyl monomers can be used for free radical polymerization catalyst.

乙烯基類單體大多數(shù)可以采用游離基型催化劑進(jìn)行聚合。

The problem of orientation of addition goes right back to the beginning of free radical chemistry.

關(guān)于加成的定向問題，可以一直追溯到自由基化學(xué)的起源。

Free-radical accumulation is linked to aging, but the olm's antioxidant activity is nothing special.

自由基會隨著年齡的增長而在體內(nèi)堆積，但是奇怪的是洞螈的抗氧化機(jī)制也沒有什么特別的地方。

They are large molecules that are able to maintain stability even if they are in a free radical form.

抗氧化劑是很大的分子團(tuán)，即使是在自由基的狀態(tài)下它們仍能保持穩(wěn)定。

Tea polyphenols have strong antioxidant and physical activity, the body's free radical scavenger.

茶多酚具有很強(qiáng)的抗氧化性和生理活性，是人體自由基的清除劑。

As a free radical, oxygen in the body can corrode cell membranes, which will damage DNA and the fats.

氧分子在體內(nèi)會侵蝕細(xì)胞膜，破壞DNA和脂肪。

Objective: To determine anti oxygen free radical (anti OFR) function in each herb of Kangqianling Granules and its compound prescription.

前言：目的：檢測抗纖靈顆粒中各單味中藥與全方的抗氧自由基作用。

Milk Thistle has a protective effect on the cell membrane which is mediated by a strong free radical scavenging and antioxidant action.

水飛薊具有細(xì)胞膜上的是由一個(gè)強(qiáng)大的清除自由基和抗氧化作用介導(dǎo)的保護(hù)作用。

Evidence suggests that pumping in too much oxygen too quickly can strip the molecule of a single electron, creating a free radical.

證據(jù)顯示，太快地吸入過多的氧氣可能奪走單電子的分子，形成自由基。

consisting of three pathways: free radical oxidation, High temperature pyrogenic decomposition and supercritical water oxidation.

主要有三種途徑：自由基氧化、高溫熱解、超臨界水氧化[]。

Owing to its structural advantage, the free radical of nitroxide has been an important component for organic magnets.

氮氧自由基因其結(jié)構(gòu)優(yōu)勢已成為有機(jī)磁體的重要構(gòu)件。

abstract: BACKGROUND: High glucose-induced free radical damage is a central link to pathological mechanism underlying diabetic retinopathy.

背景：高血糖導(dǎo)致的自由基損傷是糖尿病視網(wǎng)膜病變發(fā)病機(jī)制的中心環(huán)節(jié)。

The antioxidant activities of each extract from two Juncaceae plants were determined by using DPPH free radical scavenging method.

采用DPPH法對兩種燈心草屬植物不同溶劑提取物進(jìn)行抗氧化活性研究。

Proanthocyanidins(PC)is an effective antioxidants and free radical scavenger derived from many plants in nature.

原花青素來源于自然界很多植物，是一種有效的抗氧化劑和自由基清除劑。

free radical are a highly reactive group of atoms , molecules or radicals , which carry unpaired electron in outer orbital.

外層軌道上有單個(gè)不配對價(jià)電子的原子、原子團(tuán)或分子。

The styrene-acrylic emulsion modified by double hydroxyl tetra-coordinated silicon was prepared by free radical emulsion polymerization.

通過乳液聚合方法，制備了雙羥基四配位硅改性苯丙乳液；

The increasing of free radical by heavy increasing load training is an important factor influencing sport ability.

大負(fù)荷遞增負(fù)荷運(yùn)動導(dǎo)致自由基的生產(chǎn)增加是影響運(yùn)動能力的重要因素。

Suitable movement can reduce quantity of free radical of the organism, improve the anti-oxidant ability, and therefore slow aging.

適宜的運(yùn)動負(fù)荷能夠減少機(jī)體自由基數(shù)量，提高機(jī)體抗氧化能力，延緩衰老。

Vinyl others, used with unsaturated polyesters, cured by a free radical mechanism, are used in some segments of the wood industry.

在一些木材工業(yè)部門中將乙烯醚同不飽和聚酯組合，并通過游離基固化。

Low temperature plasma is a partial ionized conductive gas containing ion, electron, free radical etc. which has high chemical reactivity.

低溫等離子體是一種部分電離的導(dǎo)電氣體，包括離子、電子、自由基等活性粒子，具有極高的化學(xué)反應(yīng)活性。

It has been reported that chitosan has wound-healing, free radical scavenging and radioprotective effects.

研究表明，殼聚糖具有加速傷口愈合、清除自由基、抗輻射等作用。

Antioxidants are also known as free radical scavengers.

抗氧化劑也被稱為自由基清除劑。

The free radical scavenging effects and antioxidation ability of betacyanin extract were related to its betacyanin content. 4.

半枝蓮甜菜紅素提取物清除自由基與抗氧化能力與甜菜紅素含量有關(guān)。

Polyvinyl pyrrolidone (PVP) is polymeric fine chemical obtained by free radical polymerization of N-vinyl pyrrolidone (NVP).

聚乙烯吡咯烷酮（PVP）是N-乙烯基吡咯烷酮（NVP）經(jīng)自由基聚合而成的一類高分子精細(xì)化學(xué)品。