查询词典 PEI

Hereinto, Tyr-Fal was prepared from L-tyrosine and formaldehyde under alkaline conditions.Firstly, a new multi-functional film with well-defined layered structure was fabricated from Tyr-Fal and PEI via LbL method. Experiment revealed that this Tyr-Fal/PEI multilayer film emit yellow fluorescence under UV radiation. The ability of the Tyr-Fal/PEI multilayer film for adsorbing rosaniline improved after UV-exposed, which can be used in preparing micropattern.

然后以Tyr-Fal为结构单元，通过静电力自组装构筑了两种功能性的酪氨酸基多层膜：(1)利用Tyr-Fal与聚乙烯亚胺间的静电力构筑了结构稳定、有序、能在紫外光照射下发出耀眼黄色荧光的聚乙烯亚胺/酪氨酸缩甲醛超薄膜。

The above method can be used as a general method of determining molecular weight distribution of polymers.4.Solid-state ~1H wide-line NMR and ~(31)p magic angle spinningNMR were applied to a series of PEI/DNA complex samples with different PEI molecular weights and nitrogen/phosphatemolar ratios,in order to disclose the influence of various structural factors on the interactions and morphology.The results of ~1H NMR spectra showed that the linewidth of the PEI signal was greatly broadened with increasing the N/P ratio.Meanwhile,in the ~(31)p M_AS experiment,the signal was found to shift upfield with the increase of the N/P ratio.Both ~1H and ~(31)P NMR experiments demonstrated that the interaction between two constituents and subsequently the morphology of the complexes vary with the N/P ratio.

首次将固体核磁共振应用到聚合物/DNA复合物体系，观察复合物体系中不同N/P比对其相互作用和相结构的影响，研究表明N/P比的变化对聚乙烯亚胺/DNA基因递送体系分子水平上相互作用有着很大的影响；另外，还发现不同分子量的聚乙烯亚胺聚合物载体在N/P比为3的情况下对复合物中DNA的微观尺度没有明显影响；通过氢的自旋扩散实验，首次测得在PEI/DNA复合物体系中DNA相尺寸的大小，并发现在体系中N/P比达到3以上的复合物中DNA和PEI达到了分子水平上的相容。

METHODS:AsOR was conjugated to PL by EDC; The active ester of PEG derivative was reacted with the amino groups in PEI to form PEG-PEI conjugate; DNA was first complexed with PEG-PEI and then with AsOR-PL. In vitro transfection experiment was conducted in the galactose receptor positive Huh-7 cells.

分别制备AsOR-PL偶合物及PEG-PEI偶合物，然后按照不同的比例先后与报告基因DNA形成复合物，再进行Huh-7细胞的体外转染试验和静脉给药后小鼠体内的表达试验。

In vitro time-killing studies, the combination of PEI-amphotericin B and PEI-fluconazole enhanced antifungal activity, but there was an antagonist for the combination of PEI-polymyxin B.

在体外致死研究实验中可以看到，PEI-两性霉素B和PEI-氟康唑结合物可以提高抑菌作用，但PEI-多黏菌素B结合物却拮抗抑菌作用。

In vitro time-killing studies, the combination of pei-amphotericin b and pei-fluconazole enhanced antifungal activity, but there was an antagonist for the combination of pei-polymyxin b.conclusionspei alone and in combination with amphotericin b and fluconazole displayed the high antifungal activity against candida albicans.

在体外致死研究实验中可以看到，pei-两性霉素b和pei-氟康唑结合物可以提高抑菌作用，但pei-多黏菌素b结合物却拮抗抑菌作用。结论 pei单独与联合使用均对白念珠菌产生很好的抗菌效果。

Pei-Jee and Pei- Sian Ng studied at Adelaide's elder conservatorium before moving to Manchester to study under ralph Kirshbaum at the royal Northern college of Music.

吴沛祺和吴沛轩在阿德莱德市的成人音乐学校学习，在搬到曼彻斯特前师从北方皇家音乐学院的拉尔芙·克许鲍姆。

The second woman, Pei Pei works in a Chinese snackbar in Holland, together with her conservative father who does not feel at home in the Netherlands.

本次展览将展出来自荷兰和中国的八位著名设计师的作品，他们都有着兼具批判性和现实性的思维与设计理念。

Cheung Pei Shan is located in the southeast of Guilin Li River in the West Bank, Cheung Pei Shan Yamagata like a stand by the riverside stretch Ganquan lijiang nose toper named as the giant.

象鼻山位于桂林市东南漓江西岸，象鼻山因山形酷似一只站在江边伸鼻豪饮漓江甘泉的巨象而得名。

In the third chapter, As Wang wei and Pei di were buried alive for many years, so Pei di poem's style was infected Wang wei's, so he wrote those affecting poems like there is sound in quiescence, and there are strong interest in whisht, so he gain his repute in idyllist status.

第三章 王裴二人共同隐居多年，裴迪受到了王维诗风的浸染，写出了寂处有音、静中趣浓的怡人作品，从而确立了山水田园诗人的地位。

Result There was no significant difference to the number and length of parenchyma cell in the uppermost internode between Shuangdi Pei eS and Shuangdi S in meiosis and dikaryon pollen stages;there was significant difference to those in tikaryon pollen stage, and there was very significant difference to those in anthesis and the 7th day after anthesis,and on the 7th day after anthesis,the difference to the number and length of parenchyma cell in the uppermost internode between Shuangdi Pei eS and Shuangdi S was the greatest.

长穗颈双低培eS与双低S穗颈节间薄壁细胞数及细胞平均长度在减数分裂期和二核花粉期差异不明显，于三核花粉期差异达显著水平，始花当天和始花后第7天均达极显著水平，其中始花后第7天时两者的差异最大。

Yet, Edith says, there was always money in the bank.

但是Edith说，她的银行户口里面总是有钱。

We have created a series of files that resolve this problem--one for each day of the 40 days of purpose.

我们制作一系列的档案去解决这问题---一个为标竿40天中的每一天。