查询词典 free radical

Graft copolymerization of acrylic acid and acrylic amide onto chlorinated polyethylene by the oil-swellable suspension graft copolymerization technique was studied, benzoyl peroxide was used as the free radical initiator and ethyl acetate as the sweller.

采用溶胀悬浮接枝共聚法，将水溶性单体丙烯酸、丙烯酰胺接枝到疏水性氯化聚乙烯大分子链上，合成双亲性接枝共聚物。

Seepage fluid LPO content from thoracicoabdominal cavity was much higher than that of leakage fluid (P.001). Free radical reaction exist in all sorts of cells, the highest was in the platelet. After peroxidation, serum levels of LPO was much higher in noninsulin dependent diabetes mellitus, hypertension and coronary heart disease than in normal controls(P.001).The higher the quality of edible vegetable oil, the lower the content of LPO.

血清LPO明显高于血浆(P.001)，胸腹腔渗出液LPO明显高于漏出液(P.001)，过氧化处理后的糖尿病、高血压、冠心病患者血清的LPO明显高于过氧化处理后的正常人血清LPO(P.001)；油脂质量越高，LPO含量越低，相应的烟雾冷凝油的LPO是食用油脂的14.3～35.6倍。

It is concluded that acute cadmium toxication would cause lipid peroxidation and excessive free radical production,and inhibit the activities of antioxidases leading to severe injury of hepatocytes.

镉可引起肝脏脂质过氧化及自由基的大量产生，抑制抗氧化酶的活力，造成细胞的严重损伤。

In order to verify that free radical damage and pulmonary surfactant deficiency may be two of ARDS major mechanisms, we used ARDS animal model to proceed to a prevention and treatment test of ARDS model by pulmonary delivery, results of animal study showed that the drug preparation can evidently reduced the mortality and pulmonary edema of model animals . Animal tests had showed that the drug preparation has no abnomal toxity.

为了验证自由基损伤和肺泡表面活性剂缺乏的结合可能是ARDS发病的主要因素以及制剂的疗效，通过建立ARDS实验动物模型对该制剂进行肺部给药防治ARDS的模型动物试验，实验结果表明能明显降低模型动物死亡率和肺水肿，同时，动物实验证明该制剂无异常毒性。

Reversible Addition-Fragmentation Transfer polymerization; Living Free Radical Polymerization; Photoinitiate polymerization; Trithiocarbonate

工程科技I，化学，高分子化学可逆加成-断裂链转移自由基聚合；活性聚合；紫外光聚合；苯乙烯St

In this study, microwave-assisted extraction techniques of flavone from Trollius chinensis Bunge were studied by the single factor analysis and orthogonal test, then the property of antioxidation of the flavonone was also investigated through comparing the eliminating effect to the free-radical of DPPH with VC and BHT.

采用单因素分析结合正交试验的方法，研究了金莲花黄酮微波辅助提取的工艺条件，以清除DPPH自由基法，对金莲花黄酮的抗氧化性进行了分析，并比较了金莲花黄酮、VC和BHT的抗氧化能力。

No considerable effect was observed on the COX activity of P.falciparum treated with daphnetin-Fe complex. The tyrosyl free radical was tested to reflect the RNR activity of P.falciparum at various times by ESR.

结果 体外同步培养的恶性疟原虫经瑞香素（100 μmol/L）作用2、4、8和12 h后，COX活性分别被抑制了0、6%、73%和80%；在瑞香素浓度为0.1、1、100和1 000 μmol/L，作用6 h后，COX活性分别被抑制3%、31%、53%和84%；而瑞香素-Fe复合物对COX的影响几乎消失。

Can mix undisturbedly slow the skin, restore the softness with its youth particular skin and vitality, cellulose of vitaminic E acetic acid conduces to antioxidant the loss that avoids free radical cell, and with other each component is mixed attainments cooperation, in order to retain cutaneous health and vigor.

可以镇静和舒缓皮肤，恢复其青春肌肤独有的柔软和活力，抗氧化剂维他命E醋酸纤维素有助于防止游离基细胞的损伤，并且与其它各成份和诣协作，以保持皮肤的健康和活力。

And hydroxyl free radical in the methanol extract of Valeriana offeinalis L . ResultsThe half maximal inhibitory concentration(IC50) of sample on DPPH.

结果样品中活性物质对于DPPH自由基、超氧阴离子自由基、羟自由基等自由基半清除率浓度(IC50)分别为1.36，1.46和2.14 mg/ml。

Results Low-and high-dose 95% and 50% ethanol extracts and Jiannao Capsule group could improve the learning and memory ability of the Wistar rats, markedly enhance cerebral SOD activities and decrease the levels of MDA, and improved the suppressed activity of the hydroxyl free radical. Of them, high-dose 50% ethanol extracts exhibited the best effect. Conclusion The main effective extracts from Valeriana amurensis Smir.

结果 黑水缬草95%乙醇粗提物低、高剂量组，50%乙醇洗脱物低、高剂量组，中药对照健脑胶囊组均可增强模型大鼠的学习记忆能力，SOD活力显著增加，MDA含量降低，抑制羟自由基能力增强，尤以50%乙醇洗脱物高剂量组效果最佳。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。