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747408

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution

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

Synonym(s):

Fe NP PEG, 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:
329765832
NACRES:
NA.23
Pricing and availability is not currently available.

form

dispersion
nanoparticles

concentration

1 mg/mL Fe in H2O

magnetization

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

color

black

avg. part. size

30 nm (TEM)

density

0.988 g/mL at 25 °C
~1 g/mL at 25 °C

functional group

PEG

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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This Item
747319790508747300
Iron oxide(II,III), magnetic nanoparticles solution 30 nm avg. part. size (TEM), PEG functionalized, 1 mg/mL Fe in H2O, dispersion

747408

Iron oxide(II,III), magnetic nanoparticles solution

Iron oxide(II,III), magnetic nanoparticles solution 10 nm avg. part. size (TEM), PEG functionalized, 1 mg/mL Fe in H2O, dispersion

747319

Iron oxide(II,III), magnetic nanoparticles solution

Iron oxide(II,III), magnetic nanoparticles solution 5 nm avg. part. size (TEM), PEG functionalized, 1 mg/mL Fe in H2O, dispersion

790508

Iron oxide(II,III), magnetic nanoparticles solution

Iron oxide(II,III), magnetic nanoparticles solution 10 nm avg. part. size (TEM), amine functionalized, 1 mg/mL Fe in H2O, dispersion

747300

Iron oxide(II,III), magnetic nanoparticles solution

density

0.988 g/mL at 25 °C, ~1 g/mL at 25 °C

density

0.996 g/mL at 25 °C, ~1 g/mL at 25 °C

density

0.995 g/mL at 25 °C, ~1 g/mL at 25 °C

density

0.997 g/mL at 25 °C, ~1 g/mL at 25 °C

concentration

1 mg/mL Fe in H2O

concentration

1 mg/mL Fe in H2O

concentration

1 mg/mL Fe in H2O

concentration

1 mg/mL Fe in H2O

magnetization

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

magnetization

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

magnetization

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

magnetization

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

color

black

color

brown

color

brown

color

brown

avg. part. size

30 nm (TEM)

avg. part. size

10 nm (TEM)

avg. part. size

5 nm (TEM)

avg. part. size

10 nm (TEM)

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.

Do not freeze.

Legal Information

Product of Supplier: OCEAN NANOTECH LLC

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCT1429
MKCS4105
MKCQ7765
MKCR5446
MKCP8207

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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
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
Faheem Muhammad et al.
Colloids and surfaces. B, Biointerfaces, 123, 506-514 (2014-12-03)
Simultaneous delivery of multiple therapeutic agents is of great importance for effective chemotherapy due of its well-known drug synergism and suppression to chemoresistance. We report a new theranostic nanoformulation to shuttle multiple chemotherapeutic agents for successfully exterminating cancer cells. This
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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Iron Oxide Nanoparticles: Characteristics & Apps

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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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