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725366

Sigma-Aldrich

Iron oxide(II,III), magnetic nanoparticles solution

20 nm avg. part. size, 5 mg/mL in H2O

Synonym(s):

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:
329764150
NACRES:
NA.23

form

dispersion
nanoparticles

concentration

5 mg/mL in H2O

magnetization

>20 emu/g, at 4500Oe

particle size

18-22 nm

avg. part. size

20 nm

density

1.00 g/mL at 25 °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

  • Magnetic iron oxide nanoparticle (IONP) synthesis to applications: present and future: This report outlines the co-precipitation synthesis of magnetite nanoparticles using Fe(II) and Fe(III) solutions and discusses their future applications (N Ajinkya et al., 2020).
  • Surface modification of magnetic iron oxide nanoparticles: Explores the surface engineering of iron oxide nanoparticles (IONPs) to enhance their functionality for various applications (N Zhu et al., 2018).
  • Recent advances on iron oxide magnetic nanoparticles as sorbents of organic pollutants in water and wastewater treatment: Discusses the use of iron oxide magnetic nanoparticles in removing organic pollutants from water, highlighting the synthesis of core-shell magnetic nanoparticles (AM Gutierrez et al., 2017).
  • Potential toxicity of iron oxide magnetic nanoparticles: Reviews the potential toxic effects of iron oxide magnetic nanoparticles, emphasizing their stability, biocompatibility, and size control (N Malhotra et al., 2020).
  • Co-precipitation in aqueous solution synthesis of magnetite nanoparticles using iron (III) salts as precursors: Details the synthesis process of iron oxide nanocrystals and their potential applications in various fields (MI Khalil, 2015).

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Yongxing Hu et al.
Journal of the American Chemical Society, 135(6), 2213-2221 (2013-01-26)
Controlled assembly of nanoparticles into asymmetric configurations is of great interest due to their novel properties and promising applications. In this Article, we report a generic strategy for the synthesis of dimer nanoclusters and asymmetric nanoassemblies by using magnetic colloidal
Jens Baumgartner et al.
Nature materials, 12(4), 310-314 (2013-02-05)
The formation of crystalline materials from solution is usually described by the nucleation and growth theory, where atoms or molecules are assumed to assemble directly from solution. For numerous systems, the formation of the thermodynamically stable crystalline phase is additionally
Marina I Siponen et al.
Nature, 502(7473), 681-684 (2013-10-08)
Magnetotactic bacteria align along the Earth's magnetic field using an organelle called the magnetosome, a biomineralized magnetite (Fe(II)Fe(III)2O4) or greigite (Fe(II)Fe(III)2S4) crystal embedded in a lipid vesicle. Although the need for both iron(II) and iron(III) is clear, little is known
Kaori Kohara et al.
Chemical communications (Cambridge, England), 49(25), 2563-2565 (2013-02-21)
Carboxylated SiO2-coated α-Fe nanoparticles have been successfully prepared via CaH2-mediated reduction of SiO2-coated Fe3O4 nanoparticles followed by surface carboxylation. These α-Fe-based nanoparticles, which are characterized by ease of coating with additional functional groups, a large magnetization of 154 emu per
Oliver Raschdorf et al.
Molecular microbiology, 89(5), 872-886 (2013-07-31)
Magnetospirillum gryphiswaldense uses intracellular chains of membrane-enveloped magnetite crystals, the magnetosomes, to navigate within magnetic fields. The biomineralization of magnetite nanocrystals requires several magnetosome-associated proteins, whose precise functions so far have remained mostly unknown. Here, we analysed the functions of
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