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790508

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution

5 nm avg. part. size (TEM), PEG functionalized, 1 mg/mL Fe in H2O, dispersion

Synonyme(s) :

Fe NP PEG, FexOy, Magnetic iron oxide nanocrystals, Magnetite, Superparamagnetic iron oxide nanoparticles

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About This Item

Formule empirique (notation de Hill):
Fe3O4
Numéro CAS:
1317-61-9
Poids moléculaire :
231.53
Numéro MDL:
MFCD00011010
Code UNSPSC :
12352302
ID de substance PubChem :
329768219
Nomenclature NACRES :
NA.23

Forme

dispersion
nanoparticles

Concentration

1 mg/mL Fe in H2O

Magnétisation

>25 emu/g (at room temperature; under 4500 Oe)

Couleur

brown

Taille moy. des particules

5 nm (TEM)

Densité

0.995 g/mL at 25 °C
~1 g/mL at 25 °C

Groupe fonctionnel

PEG

Température de stockage

2-8°C

Chaîne SMILES 

O=[Fe].O=[Fe]O[Fe]=O

InChI

1S/3Fe.4O

Clé InChI

SZVJSHCCFOBDDC-UHFFFAOYSA-N

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Catégories apparentées

Description générale

Concentration 5mg/ml includes total weight nanocrystals plus ligands.

Application

These magnetic nanoparticles are typically used in imaging or as contrast agents. The surface functionality allows for different ligation or further functionalization.

Do not freeze.

Informations légales

Product of Ocean Nanotech; LLC.

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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Natalia Janik-Olchawa et al.
Scientific reports, 10(1), 15447-15447 (2020-09-24)
In the paper, the results of the first regular studies of ultra-small iron oxide nanoparticles (IONPs) toxicity in vitro were presented. The influence of PEG-coated NPs with 5 nm magnetite core on six different cell lines was examined. These were: human
Anna Lohße et al.
Journal of bacteriology, 196(14), 2658-2669 (2014-05-13)
Biosynthesis of bacterial magnetosomes, which are intracellular membrane-enclosed, nanosized magnetic crystals, is controlled by a set of >30 specific genes. In Magnetospirillum gryphiswaldense, these are clustered mostly within a large conserved genomic magnetosome island (MAI) comprising the mms6, mamGFDC, mamAB
Aude Picard et al.
Nature communications, 6, 6277-6277 (2015-02-19)
Twisted stalks are organo-mineral structures produced by some microaerophilic Fe(II)-oxidizing bacteria at O2 concentrations as low as 3 μM. The presence of these structures in rocks having experienced a diagenetic history could indicate microbial Fe(II)-oxidizing activity as well as localized
Yingjie Li et al.
Journal of bacteriology, 196(14), 2552-2562 (2014-05-06)
The biomineralization of magnetosomes in Magnetospirillum gryphiswaldense and other magnetotactic bacteria occurs only under suboxic conditions. However, the mechanism of oxygen regulation and redox control of biosynthesis of the mixed-valence iron oxide magnetite [FeII(FeIII)2O4] is still unclear. Here, we set
Tianyuzi Li et al.
International journal of nanomedicine, 10, 3779-3790 (2015-06-18)
Regimen adherence, systemic toxicities, and limited drug penetrance to viral reservoirs are obstacles limiting the effectiveness of antiretroviral therapy (ART). Our laboratory's development of the monocyte-macrophage-targeted long-acting nanoformulated ART (nanoART) carriage provides a novel opportunity to simplify drug-dosing regimens. Progress
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