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412449

Sigma-Aldrich

PAMAM dendrimer, ethylenediamine core, generation 4.0 solution

10 wt. % in methanol

Synonyme(s) :

Starburst Generation 4

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About This Item

Formule linéaire :
[NH2(CH2)2NH2]:(G=4);dendri PAMAM(NH2)64
Numéro CAS:
Poids moléculaire :
14214.17
Numéro MDL:
Code UNSPSC :
12162002
Nomenclature NACRES :
NA.23

Description

amino surface groups

Forme

solution

Poids mol.

generation 4.0

Caractéristiques

core type ethylenediamine core (2-carbon core)

Concentration

10 wt. % in methanol

Nb de groupes de surface

64

Indice de réfraction

n20/D 1.348

Point d'ébullition

64.7 °C

Densité

0.813 g/mL at 25 °C

Température de stockage

2-8°C

Description générale

PAMAM dendrimer, ethylenediamine core, generation 4.0 solution is a poly(amidoamine) that is categorized as a class of dendritic polymers which can be prepared by a two-step interactive reaction that forms generations around the central ethylenediamine core. It consists of nitrogen and amide as functional groups that are structured in regular “branched upon branched” pattern. It is majorly used as a high capacity chelating agent.

Application

PAMAM dendrimer, ethylenediamine core, generation 4.0 solution is used as a compacting agent to bring in the conformational changes in the DNA molecule. It can be attached on the cellulose substrate that acts as a biofunctional surface for potential applications in immonoassays. It is used in MRI contrast agents and in the condensation formation of silica nanospheres.

Forme physique

Contains 64 surface primary amino groups

Informations légales

Manufactured by Dendritech®, Inc.
Dendritech is a registered trademark of Dendritech, Inc.

Pictogrammes

FlameSkull and crossbonesHealth hazard

Mention d'avertissement

Danger

Classification des risques

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1

Organes cibles

Eyes

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

51.8 °F - closed cup

Point d'éclair (°C)

11 °C - closed cup

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves


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Consulter la Bibliothèque de documents

Felipe Vidal et al.
Molecular pharmaceutics, 13(10), 3395-3403 (2016-08-25)
Polyamidoamine (PAMAM) dendrimers are hyperbranched macromolecules which have been described as one of the most promising drug nanocarrier systems. A key process to understand is their cellular internalization mechanism because of its direct influence on their intracellular distribution, association with
Rolando Alberto Rodríguez-Fonseca et al.
Colloids and surfaces. B, Biointerfaces, 177, 77-93 (2019-02-04)
Peptide epitopes have been widely used to develop synthetic vaccines and immunotherapies. However, peptide epitopes may exhibit poor absorption or immunogenicity due to their low molecular weights. Conversely, fourth-generation polyamidoamine (G4-PAMAM) dendrimers are nonimmunogenic and relatively nontoxic synthetic nanoparticles that
DNA compaction induced by a cationic polymer or surfactant impact gene expression and DNA degradation
Ainalem M, et al.
PLoS ONE, 9(3), e92692-e92692 (2014)
Marc R Knecht et al.
Langmuir : the ACS journal of surfaces and colloids, 20(11), 4728-4732 (2005-06-23)
In diatoms, silica synthesis occurs by use of complex posttranslationally modified peptides, termed silaffins, and highly complex biological polyamine structures. Silaffin peptides have lysine residues that are modified to long-chain polyamine moieties of N-methyl derivatives of polypropylenimine to drive silica
Marta Walczynska et al.
Toxicology mechanisms and methods, 28(6), 432-439 (2018-04-03)
Nematode Caenorhabditis elegans (C. elegans) was used to investigate the impact of silver nanoparticles (SNP), multiwalled carbon nanotubes (MWCNT), and polyamidoamine dendrimers (PAMAM) used in concentration of 1010 particle/mL. Population-based observations and gene expression analysis were employed in this study.

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