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747254

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution

10 nm avg. part. size (TEM), carboxylic acid functionalized, 5 mg/mL Fe in H2O, dispersion

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
Fe3O4
CAS Number:
1317-61-9
Molecular Weight:
231.53
MDL number:
MFCD00011010
UNSPSC Code:
12352302
PubChem Substance ID:
329765820
NACRES:
NA.23

form

dispersion
nanoparticles

Quality Level

100

concentration

5 mg/mL Fe in H2O

magnetization

>45 emu/g, at room temperature; under 4500 Oe

color

brown

avg. part. size

10 nm (TEM)

density

~1 g/mL at 25 °C

functional group

carboxylic acid

storage temp.

2-8°C

SMILES string

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

InChI

1S/3Fe.4O

InChI key

SZVJSHCCFOBDDC-UHFFFAOYSA-N

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General description

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.

Legal Information

Product of Ocean Nanotech; LLC.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
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
Lizhen Yan et al.
Journal of chromatography. A, 1395, 173-179 (2015-04-14)
A new method for selenium speciation in fermented bean curd wastewater and juice was described. This method involved sample extraction with 5-sulfosalicylic acid (SSA)-functionalized silica-coated magnetic nanoparticles (SMNPs), capillary electrophoresis (CE) separation, and online detection with a modified electrothermal atomic
Ayrat M Ziganshin et al.
AMB Express, 5, 8-8 (2015-04-09)
Understanding the factors that influence pollutant transformation in the presence of ferric (oxyhydr)oxides is crucial to the efficient application of different remediation strategies. In this study we determined the effect of goethite, hematite, magnetite and ferrihydrite on the transformation of
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