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929867

Sigma-Aldrich

Linear polyethylenimine-block-poly(ethylene glycol)

PEG average Mn 2,000, PEI average Mn 30,000

Synonym(s):

PEG-b-PEI, PEG-PEI, Poly(ethylene glycol)-block-polyethylenimine

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About This Item

Linear Formula:
CH3(C2H4O)n(C2H5N)mOH
UNSPSC Code:
12162002
NACRES:
NA.25

form

powder or solid

Quality Level

100

mol wt

PEG Mn 2000 Da
PEG average Mn 2,000
PEI Mn 30000 Da
PEI average Mn 30,000

color

white to pale yellow

storage temp.

2-8°C

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General description

Linear polyethylenimine-block-poly(ethylene glycol) (PEG-b-PEI) is a block copolymer of cationic poly(ethylene imine) (PEI) and hydrophilic poly(ethylene glycol) (PEG). PEI is one of the most commonly used cationic polymers for gene delivery applications and PEG improves nucleic acid delivery by producing a stealth barrier.

Application

Due to their low immunogenicity profiles, polymeric non-viral vectors have shown promise in advancing the treatment of many severe genetic and acquired diseases via gene therapy.

Features and Benefits

Copolymers of PEI and hydrophilic poly(ethylene glycol) have been designed to provide a stealth-like shield around polymer/DNA complexes, reducing nonspecific interactions, inhibiting activation of the reticuloendothelial system, and prolonging the half-life of the complexes in the blood.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Pallab Banerjee et al.
Bioconjugate chemistry, 17(1), 125-131 (2006-01-19)
A block copolymer of a hyperbranched poly(ethylene glycol)-like core and linear polyethylenimine (HBP) was synthesized by a facile synthetic route that included (1) a single-step cationic copolymerization of diepoxy and polyhydroxyl monomers, (2) derivatization of hydroxyl groups of the core

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