光敏作用

Another photosensitive audion effect is transmission signal , photo-coupler also says photoelectricity isolator , the shorter form glorify a couple.

光敏三极管的另一个作用是传输信号，光耦合器亦称光电隔离器，简称光耦。

Objective: To compare the PDT and light photosensitive effect between Phycobiliprotein Chromophore peptides and Photofrin Ⅱ.

目的：比较藻胆蛋白色素肽与癌光啉photofrin Ⅱ的光动力学疗法(photodynamic therapy， PDT)效果与日光光敏作用。

In this review, we present (1) the chromoprotein structure of phytochrome, its domains and corresponding functions;(2) members of phytochrome gene families and their evolutionary relationships in the main groups of plants;(3) advances in molecular mechanisms of phytochrome signaling and gene regulation; and (4) prospects for future research.

本文综述了光敏色素的分子结构、它所包含的结构域和相应功能以及植物各主要类群中光敏色素基因家族的成员组成与进化关系；重点在分子水平上介绍了光敏色素的生理功能与作用机制。最后，基于最新的研究进展提出了将来的研究方向。

In this review, we present (1) the chromoprotein structure of phytochrome, its domains and corresponding functions:(2) members of phytochrome gene families Their evolutionary relationships in the main groups of plants;(3) advances in molecular mechanisms of phytochrome signaling and gene regulation; and (4) prospects for future research.

本文综述了光敏色素的分子结构、它所包含的结构域和相应功能以及植物各主要类群中光敏色素基因家族的成员组成与进化关系；重点在分子水平上介绍了光敏色素的生理功能与作用机制。最后，基于最新的研究进展提出了将来的研究方向。

Sensitizing effects on photooxidation of NADPH in deuterium oxide was determined.It was showed that all the title compounds had much more efficacious photosensitizing ability than that of hematoporphyrin derivatives.

在D2O中对NADPH光氧化作用的敏化效应实验表明：所有目标化合物均具有较强的光敏活性，明显高于参比药物HpD。

Sodium fatty alcohlo ether sulfate, S-80, fatty alcohol-polyoxyethylene ether and S-60 resulted in slow photodecomposition of rotenone in aqueous solution revealing a photo-extinction effect, sodium dodecylberzenesulfonate, tween-60, hexadecyl trimethyl ammonium bromide and poyl vinyl pyrrolidone made the photolysis of rotenone in aqueous solution fast showing an obvious photosensitized effect.

室内条件下研究了鱼藤酮水溶液存在不同表面活性剂时，鱼藤酮的紫外光降解，结果表明：脂肪醇聚氧乙烯醚硫酸钠、司本－80、长链脂肪醇聚氧乙烯醚和司本－60对鱼藤酮在水溶液中的光解速率表现出显著的光猝灭降解效应；十二烷基苯磺酸钠、吐温－60、十六烷基三甲基溴化铵和聚乙烯吡咯烷酮对鱼藤酮在水溶液中的降解表现出一定程度的光敏化作用。

Experiments of photosensitization exhibited that, when irradiated with red light, the photodamaging effects on cells of both photosensitizers are close to each other; but when exposed to room light the cytotoxic effect of AISPC is lower than that of HPD, suggesting a potential advantage of reducing undesired side effects in clinical application.

光敏杀伤的结果表明，在红光照射下，两光敏剂对细胞有相近的杀伤效率；在室内自然光下，AISPC对细胞的损伤明显低于HPD，显示出其较低的光毒付作用，具有适合临床应用的优点。

Compared with HA in water-contained organic solvents, the pigment in micelle had higher pKa value and higher fluorescence quantum yield. Moreover, the quantum yield of active species produced from photosensitization, 1O2 and ·OH, increased as well. As a result, the photosensitivity of HA was enhanced.

相对于含水有机体系，HA在胶束中基态的 pKa值升高，荧光量子产率增大，光敏反应产生的活性中间体1O2 和·OH的产额增加，从而提高了其光敏活性，这在光敏损伤作用中具有重要的生物学意义。

In this thesis, some novel fluoro-containing alkoxyl metallophthalocyanines asphotosensitizers for the treatment of cancer were designed and synthesized; some of theirproperties related to photosensitizer such as spectra properties, photooxidation ability, DNAphotocleaving ability, and photodamage on tumor cells in vitro were studied.

论文在比较了目前用于光动力作用光敏剂的优缺点的基础上，设计、合成了含氟烷氧基取代的金属酞菁衍生物，并对它们的光谱性能、光氧化性能、对DNA的光敏切断性能及对离体细胞的光动力损伤作用进行了研究。

The tryptophan residues play important roles in DNA photoreactivation catalyzed by CPD photolyases. We have investigated the action mechanism concerning Trp in DNA photoreactivation, and obtained the results as follows: 1 We proposed a mechanism of photosensitized splitting of CPDs by Trp and Trp-containing peptides. 2 Quantum yields of splitting of the model compounds that a Trp linked covalently a CPD were obtained under 290 nm light in various solvents, these values changing with solvent, range from 0.01 to 0.5. 3 Utilizing pulse radiolysis technique, splitting processes were observed in aqueous solution of the CPDs with hydrated electron and some oxidative species (such as hydroxyl radical, bromic radical and azide radical), and obtained their rate constants. In the case of interaction between CPD and hydrated electron, splitting of the CPD anion, and pyrimidine anion transfer an electron to FAD or Rf, were observed. The process rate was slower one order more than that in photolyase. Minor, but highly mutagenic UV-light-induced lesions are (6-4) photoproducts, which are repaired by (6-4) photolyases. These enzymes, discovered in 1993, are not well characterized and their mechanism is still under investigation.

我们研究它的作用机理，获得以下结果：1）建立了色氨酸及其肽对嘧啶二聚体光敏化裂解的直接修复作用机理模型；2）获得了色氨酸共价键连接于嘧啶二聚体的化合物在多种溶剂中290nm光辐照裂解的量子效率，其值随溶剂而变化，范围在0.01-0.5；3）运用脉冲辐解观察到嘧啶二聚体与水合电子和一些氧化性的自由基作用裂解过程，得到相应速率常数；对二聚体与水合电子作用发生裂解以及向FAD返还电子的过程进行了体外模拟；4）（6-4）光解酶的作用机理中一个关键假定是氧杂环丁烷中间体在接受电子后能自发裂解，恢复二嘧啶的结构。

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。