查询词典 photosensitization

It was found that 〓 and 〓 are all the important intermediate species in both solutions and DNA complexes, moreover, the quantum yield of 〓 is competitive to that of 〓 These results suggest that the photosensitization of AMD proceeds via both type Ⅱ and type Ⅰ mechanisms.

这些实验结果说明，放线菌素D的光敏作用是通过能量转移和电子转移两种反应途径进行的。

We aimed to solved the problem of the low efficiency and low mineralization of the treatment of photocatalysis or photosensitization alone and set up a theoretical model and a practical technic flow for the efficient degradation of pollutants under solar irradaition.

解决光催化与光敏化长期长期分离处理的低效和矿化不彻底的难题，为利用太阳光高效降解污染物提供理论模型和切实可行的工艺流程。

This suggests that the membrane is the target of photodamage and the free redicals of lipids produce by HA photosensitization is probably the important factor that initiates the damage of DNA and causes cell death finally.

实验还表明HA加上光照后对细胞具有明显的杀伤作用，使细胞存活率显著降低，提示HA光敏作用靶部位是细胞膜，而引发的脂自由基等产物可能是诱导DNA等损伤，最终导致细胞死亡的重要因素。

Anthraquinones are an important industrial material, and it is reported that some anthraquinones have photosensitization activity. Thus there compounds, discharged into aqueous system, may take place photochemistry reaction after absorb visible light, and lead to have a great risk for aqueous ecology systems.

蒽醌类化合物是重要的化工原料，而且研究表明部分蒽醌类化合物具有光敏活性，因此，排放到水环境中的此类物质吸收可见光后可能发生光化学反应，对水生生态系统造成严重的威胁。

They include photosensitization of semiconductor by use of organic dyes, precious metal deposition, cation doping of TiO2 and coupling of two semiconductors with different energy levels.

详细介绍了用贵金属沉积、有机染料敏化、过渡离子掺杂、半导体耦合等方法对纳米TiO2进行修饰改性的研究现状，展望了纳米TiO2的光催化应用前景，指出了存在的问题和今后的研制方向。

These experimental results demonstrated that photosensitization was the potential mechanism of photoinduced toxicity of 1-amino-2,4-dibromoanthraquinone to D.magna.

此外，添加抗氧化剂(维生素C、维生素E和β-胡萝卜素)可以显著减弱1-氨基-2，4-二溴蒽醌对大型溞的光致毒性。

The photosensitization raised from the direct injection of electrons from azo to conductor-band of semiconductor was further discovered.

利用TiO〓半导体界面/溶液的快速光反应特性，将TiO〓作为在线光催化反应柱的填充材料，紫外光照射还原NO〓〓为NO〓〓，实现了流动注射动力学分光光度法同时测定NO〓〓和NO〓〓。

Keywords: solid phase organic synthesis; stereoselective reaction; heterogeneous photosensitization

中文关键词：固相有机合成；立体选择性反应；非均相光敏异构化

Sunburn should not be confused in outdoor situations with photosensitization normally precipitated by exposure to certain plant toxins present in eg.

如果猪已经严重晒伤，必须要使用一些软膏或是"猪油"来缓解不适并帮助治疗，情况严重的要使用止痛药，并且地面要松软。

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。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐