聚乙烯亚胺

新型聚乙烯亚胺衍生物在HepG2细胞中转染和毒性的研究

Transfection and Cytotoxicity Studies of Novel Polyethyleneimine Derivative on Hep G2

聚乙烯亚胺（PEI）是一种聚胺高分子，对于金属离子具有良好的稳定能力。

Polyethyleneimine ( PEI ) is a kind of polyamine polymer , and it can stabilize metal ions well .

聚乙烯亚胺在SiC粉体上的定量吸附研究

Adsorption Behaviour of PEI on Silicon Carbide Powder

聚乙烯亚胺改性MCM-48的制备及其CO2吸附性能的研究

Modification of MCM-48 with Polyethyleneimine and Its Performance for CO_2 Adsorption

试验了三种成膜材料：聚烯丙胺盐酸盐（PAAHC）、聚乙烯亚胺（PEI）和聚乙二醇（PEG）。

Polyethyleneimine , PEI and poly ( ethyleneglycol ), PEG were tried .

高电荷密度的聚乙烯亚胺的加入能够中和DCS中的阴离子垃圾，提高阳离子聚丙烯酰胺的助留效果。

PEI with high cationic charge density could neutralize the anionic trash in DCS and improve the efficiency of CPAM .

并观察溶酶体抑制剂氯喹和聚乙烯亚胺（PEI）对其转染效率的影响。

The influence of chloroquine and polyethyleneimine was observed .

使用紫外吸收光度法研究了硅藻土对聚乙烯亚胺（PEI）的等温吸附；

The adsorption isotherm of polyethyleneimine ( PEI ) modified diatomite was studied using UV spectrophotometry .

目的：评估阳离子高分子聚合物聚乙烯亚胺（PEI）的潜在抗真菌活性。

AIM : To evaluate the potential fungicidal activity of a cationic polymer polyethylenimine ( PEI ) .

聚乙烯亚胺（PEI）为阳离子多聚物，可浓缩DNA形成纳米级颗粒，作为基因释放载体转染真核细胞。

Polyethylenimine ( PEI ) polycation can condense DNA into granules of around nanometer size . which can be used for delivering gene into mammalian cells .

采用光谱法研究了聚乙烯亚胺（PEI）与钴离子在水溶液中络合的行为。

The kinetic and thermodynamic characteristics of the complexation reaction of polyethyleneimine ( PEI ) with cobalt ions were studied .

通过乳液型双酚A环氧树脂（BAE）对聚乙烯亚胺（PEI）进行改性，制备出了具有强阳离子性和反应活性的改性PEI纸张增强剂。

A kind of cationic paper strength agent was prepared through the modification of polyethylene imine ( PEI ) with bisphenol A epoxy resin ( BAE ) emulsion .

目的：探讨聚乙烯亚胺（PEI）包裹的氧化铁磁性纳米颗粒中polyMAG1000用于体外基因转导的可行性。

Objective : To evaluate the feasibility of using polyethyleneimine ( PEI ) coated magnetic iron oxide nanoparticles ( polyMAG-1000 ) as gene vectors .

本论文对比性地研究了改性后的超支化及线性聚乙烯亚胺（PEI）作为反相纳米胶束对极性客体分子的包裹及释放行为。

Modified hyperbranched and linear polyethylenimine ( PEI ) as nano-sized inverted micelles for the encapsulation and release of polar guest molecules was comparatively studied .

使用Stober方法制备了二氧化硅微球，并用3-胺丙基三甲氧基硅烷（APS）和聚乙烯亚胺（PEI）对二氧化硅微球表面进行功能化来吸附金纳米粒子。

Then the surface-functionalized of silica microspheres was functionalized by 3-aminopropyltrimethoxysilane ( APS ) and polyethyleneimine ( PEI ) which adsorb the gold nanoparticles at room temperature .

聚乙烯亚胺（PEI）是一种非常好的重金属离子捕集剂，但存在着易溶于酸，质软，难成形以及易流失等缺点。

Poly ( ethyleneimine )( PEI ) has a good general complexing property for transition metal ions but short for its no shape and easy to flow .

由于聚乙烯亚胺（PEI）正电荷密度较高，因此以其结构为基础的新型阳离子聚合物载体成为研究热点。

One of the most successful and widely studied gene delivery polymers reported to date is polyethylenimine ( PEI ) because of its high density of cations .

聚乙烯亚胺纳米基因载体的实验研究聚丙烯酰胺凝胶法制备BeO纳米粉体

Preparation and Characterization of Polyethyleneimine Nanoparticles as Gene Delivery Systems ; Synthesis of Beryllium Oxide Nanoparticles by Polyacrylamide Gel Route

研究了BCTMP中DCS对阳离子聚丙烯酰胺和聚乙烯亚胺助留效果的影响，并使用果胶酶处理DCS，比较了酶处理前后DCS对阳离子助剂的作用效果。

The effects of dissolved and colloidal substances ( DCS ) in BCTMP and their treatment with pectinase on the efficiency of cationic polyacrylamide ( CPAM ) and polyethyleneimine ( PEI ) were studied .

采用聚乙烯亚胺（PEI）作为表面活性剂对工业用SiC粉体进行表面改性处理，研究了改性前后SiC粉体的流动特性以及PEI加入量和pH值的影响。

The surface modification of industrial SiC powders was carried out by polyethyleneimine ( PEI ), and the effects of pH and adding content of PEI on flow characteristics of the powder before and after modified treatment were analyzed .

我们通过聚乙烯亚胺转染编码β-半乳糖苷酶的pSVβ质粒到COS-7和NIH3T3细胞中，测定质粒因素、血清、细胞密度、操作方式以及转染复合物的保存因素对聚乙烯亚胺转基因效率的影响。

Influences of plasmids factor , albumin , serum , cell density , operation methods and polyethylenimine / DNA preserve factors on transfection efficiency were investigated .

它能够与多价阳离子和带正电荷的聚电解质如聚乙烯亚胺（PEI）作用并形成带电量不一样的复合物。

It is also a kind of stiff polyelectrolyte . dsDNA can interact with multivalent cations and other polyelectrolyte with positive charges such as polyethyleneimine ( PEI ), forming complexes with different charge conditions .

分别用聚乙烯亚胺（PEI）和戊二醛（Glu）溶液在压电石英晶体银电极上固定梅毒抗体来检测不同浓度的标准抗原溶液。

We utilized polyethylenimine ( PEI ) and Glu solution to immobilize the antibody of Treponema Pallidum on the silver electrode of piezoelectric quartz crystal and detect the standard antigen solution at different concentration .

目的：探讨半乳糖（Gal）-聚乙烯亚胺（PEI）-c-myc反义寡核苷酸（ASODN）交联复合物对人肝癌细胞增殖的影响。

AIM : To evaluate the inhibitory effect of galactose ( Gal ) - polyethyleneimine ( PEI ) - c-myc antisense oligodeoxynucleotide ( ASODN ) complex on proliferation of human hepatocellular carcinoma cells .

这些孔的形成可以用相分离理论来解释。然后，通过滴铸聚乙烯亚胺（PEI）的方法，对直接纺到QCM电极上的PS纳米纤维膜进行功能化修饰。

What is more , the formation of the porous structure can be explained by phase separation theory . Then , modification of the PS nano fibrous membrane was realized by drop-casting of polyethyleneimine ( PEI ) .

利用聚乙烯亚胺法，将C2型葡萄球菌肠毒素（SE）抗体固化在未抛光的压电晶体的金电极上，利用双调式振荡电路制作的振荡器，构建压电免疫传感器，其稳定性、特异性都较好。

A piezoelectric immunosensor for detection in liquid phase was developed by using polyethy_leneimine method for immobilization C2 type staphylococcin enterotoxin antibody on the gold electrode of rough piezoelectric crystal and dual modulated oscillator . The immunosensor has fair stability and specificity .

采用螯合电导滴定法研究了聚乙烯亚胺（PEI）与Zn2+、Cd2+的配合过程，提出了PEI与各种金属离子所形成螯合物的可能结构；

The complexing processes between linear polyethyleneimine ( PEI ) with Zn ~ 2 + and Cd ~ 2 + were studied by using chelation-conductivity titration method , and the structures of these chelates of PEI with various metal ions were proposed .

目的评价转铁蛋白-多聚乙烯亚胺（Transferrin-polyethylenimine，Tf-PEI）靶向性转染小鼠骨肉瘤细胞的可行性。

Objective To investigate the feasibility and efficiency of transferrin-polyethylenimine ( Tf-PEI ) for tumor-targeted gene transfer to murine osteosarcoma .

对壳聚糖致孔剂致孔、交联及胺化条件进行了优化，以聚乙烯亚胺为胺化剂，制备了一种新型的锥孔、高胺含量壳聚糖（PEI-CTS）树脂。

A novel porous chitosan ( PEI-CTS ), which has higher concentration of amino group , was synthesized by polyaminating with poly ( ethylene imine ) on cross-linking chitosan .

目的：研究以转铁蛋白-多聚乙烯亚胺（transferrin-polyethylenimine，Tf-PEI）为靶向性载体，体内转染小鼠白细胞介素12（murineinter-leukin-12，mIL-12）基因治疗小鼠骨肉瘤模型的疗效。

AIM : To investigate the effect of transferrin polyethylenimine ( Tf PEI ) as a tumor targeted carrier transfected in vivo murine interleukin 12 ( mIL 12 ) gene on the treatment of osteosarcoma model of mice .