敏化作用

Through fluorescence spectrum and photocurrent action spectrum measurements,we found that fluorescence signal of CdS weakened after TiO_2 film was deposited CdSby electrodeposition, and accordingly improved photoelectric capability of TiO_2 filmand achieved sensitization action.

通过荧光光谱和光电流作用谱结果表明在TiO_2薄膜电极上采用电化学沉积法沉积CdS之后，CdS的荧光信号减弱，从而提高了TiO_2薄膜电极的光电性能，起到了敏化的作用。

The absorption bands in visible region are related to photoinduced electron transfer processes, and the dimethylfluorenyl amino benzofuran groups are major chromophore thatcontributed to the sensitization of photo-to-current conversion.

可见区的吸收带都与光诱导电荷转移过程有关，二甲基芴氨基苯并呋喃基团是在光电转换敏化中起主要作用的基团。

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。

In this paper, the experiment results in the strength of two spectral series depending on the concentration of sensibilizer Terbium have been analysed.

可见对于铽的绿色谱线而言，铽离子本身也会起一种敏化作用。据此，我们提出了三价铽离子具有自敏化效应的观点，来解释上述的实验结果，这种观点是：在含有较高浓度铽离子的磷光体中，铽离子既是绿色辐射的发光中心，又是它的敏化中心。

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。

Hence, PKC is not only involved in the development of the central sensitization, but also plays an important role in the sensitization of primary nociceptive neurons.

研究表明，PKC不仅参与伤害性感受的中枢敏化机制，而且在初级伤害性感觉神经元的敏化中起着非常重要的作用。

Mizumura K,Kumazawa T. Modification of nociceptor responses by inflammatory mediators and second messengers implicated in their actiona study in canine testicular polymodal receptors.

痛过敏的产生有赖于许多炎症介质的参与，如PGs，缓激肽，5-羟色胺和白介素B4等，这些炎症介质有的可敏化伤害性感受器，使它们的阈值降低，有的可激活伤害性感受器，有的具有敏化和激活双重作用[4~6]。

PL spectra indicate that the emission bands at 515 and 542 nm correspond to the 2H(subscript 11/2)→4I(subscript 15/2) and 4S(subscript 3/2)→4I(subscript 15/2) transitions of Er(superscript 3+), respectively. In the samples, the cerium dopant exists as Ce(superscript 3+) and Ce(superscript 4+). Ce(superscript 3+) sensitizes Er(superscript 3+) and enhances the luminescence intensity of the doped nanorods remarkably and energy transfer from Ce(superscript 3+)→Er(superscript 3+) was observed.

对发光机理的初步研究表明：发光分别对应于Er(上标 3+)的2H(下标 11/2)→4I(下标 15/2)，4S(下标 3/2)→4I(下标 15/2)跃迁，铈离子以Ce(上标 3+)和Ce(上标 4+)两种形式存在于体系中，Ce(上标 3+)对Er(上标 3+)起敏化作用，可以显著增强β-BBO：Er(上标 3+)/Ce(上标 3+)/Ce(上标 4+)纳米棒的发光强度，存在Ce(上标 3+)→Er(上标 3+)的能量传递过程。

Using test apparatus underwater explosion,it is studied that the desensitization phenomenon of emulsion explosives which is sensitized by glass micro-balloons and expanded perlites in different dynamic pressures,and the desensitization degree of two kinds of sensitized methods are compared at the same dynamic pressure fore-and-aft.

利用水下爆炸测试系统，对不同动压作用后玻璃微球和膨胀珍珠岩敏化的乳化炸药的减敏现象进行了研究，比较了在相同动压作用前后两种敏化方式的乳化炸药的减敏程度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。