跳转至内容
Merck
CN
所有图片(4)

文件

408719

Sigma-Aldrich

支化聚乙烯亚胺

average Mw ~800 by LS, average Mn ~600 by GPC

别名:

PEI, 支化乙二胺

登录查看公司和协议定价
所有图片(4)

About This Item

线性分子式:
H(NHCH2CH2)nNH2
CAS号:
25987-06-8
MDL编号:
MFCD00084427
UNSPSC代码:
12162002
NACRES:
NA.23

形式

viscous liquid

质量水平

200

分子量

average Mn ~600 by GPC
average Mw ~800 by LS

折射率

n20/D 1.5240

密度

1.050 g/mL at 25 °C

InChI

1S/C2H8N2.C2H5N/c3-1-2-4;1-2-3-1/h1-4H2;3H,1-2H2

InChI key

SFLOAOINZSFFAE-UHFFFAOYSA-N

相关类别

一般描述

聚乙烯亚胺是一种亲水性聚合物，作为一种非病毒合成载体，广泛用于体内递送治疗性核酸。由于其优异的理化性质，它被应用于蛋白质的分离和纯化、二氧化碳吸收、药物载体、废水处理、生物标记等多个领域。

应用

支链型PEI可作为前体合成共轭多聚体，用于高效基因转染。PEI与Jeffamine聚醚的共轭化和PEI氨基的胍化可降低多聚体的细胞毒性，并保护其在血清蛋白存在下不会发生聚焦。

PEI 浸渍竹炭可用作CO2吸附剂。PEI中存在大量的氨基基团，可在酸碱作用下与CO2发生反应，增强竹炭的吸附能力。

它还可用于制备对有机药物分子具有高配位能力的交联水溶性聚合物。

特点和优势

  • 支链型PEI具有较好的络合 能力和缓冲能力。
  • 高离子交换 能力和对蛋白质的亲和力。
  • 显著的DNA转移效率。

外形

支化聚合物

警示用语：

Danger

危险声明

H302,H318,H411

危险分类

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1

WGK

WGK 3

闪点(°F)

356.0 °F

闪点(°C)

180 °C

个人防护装备

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ （Lot或Batch）字后找到。

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

Valentina Dinca et al.
Sensors (Basel, Switzerland), 18(12) (2018-12-07)
Developing a controlled method for obtaining hybrid enzymatic-based interfaces for sensing application require the use of a multiuse, reusable sensor. By controlling the interface characteristics in terms of the surface chemistry, thickness, and roughness, a tailored response toward various toxic
Andrew Jajack et al.
PloS one, 14(1), e0210286-e0210286 (2019-01-17)
Insurmountable detection challenges will impede the development of many of the next-generation of lab-on-a-chip devices (e.g., point-of-care and real-time health monitors). Here we present the first membrane-based, microfluidic sample preconcentration method that is continuous, quantifiable, simple, and capable of working
Irena Mamajanov et al.
Life (Basel, Switzerland), 10(8) (2020-08-23)
Enzymes are biological catalysts that are comprised of small-molecule, metal, or cluster catalysts augmented by biopolymeric scaffolds. It is conceivable that early in chemical evolution, ancestral enzymes opted for simpler, easier to assemble scaffolds. Herein, we describe such possible protoenzymes:
Jonathon M Muncie et al.
Developmental cell, 55(6), 679-694 (2020-11-19)
Embryogenesis is directed by morphogens that induce differentiation within a defined tissue geometry. Tissue organization is mediated by cell-cell and cell-extracellular matrix (ECM) adhesions and is modulated by cell tension and tissue-level forces. Whether cell tension regulates development by modifying
Anna Alhaddad et al.
PloS one, 7(12), e52207-e52207 (2013-01-04)
Small interfering RNAs (siRNAs) are powerful tools commonly used for the specific inhibition of gene expression. However, vectorization is required to facilitate cell penetration and to prevent siRNA degradation by nucleases. We have shown that diamond nanocrystals coated with cationic
查看所有相关文献

商品

Functionalized PEI and Its Role in Gene Therapy

Gene therapy has become one of the most discussed techniques in biomedical research in recent years.

Nanoparticle-Based Drug and Gene Delivery for Tumor Targeting

Professor Yoshiki Katayama (Kyushu University, Japan) discusses recent advances in drug delivery systems and strategies that exploit the EPR effect, with a special focus on stimuli-responsive systems based on novel materials.

Progress on Nonviral Delivery for CRISPR/Cas9

CRISPR/Cas9 delivery via nonviral nanoparticles shows promising advancements for gene editing in disease treatment.

Polyelectrolyte Multilayer Films and Membrane Functionalization

We present an article that discusses two applications in particular; first, using these layers as polyelectrolyte membranes to control permeability.

查看所有结果

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门