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747467 Sigma-Aldrich

Iron oxide(II,III) magnetic nanopowder

30 nm avg. part. size (TEM), NHS ester functionalized

Synonym: Fe NP NHS, FexOy



Related Categories 26: Fe, Biomedical Materials, Iron Oxide Nanoparticles, Magnetic Materials, Materials Science,
form   powder
composition   Fe, ~1.25 % (w/w)
magnetization   >45 emu/g, at room temperature; under 4500 Oe
color   black
avg. part. size   30 nm (TEM)
functional group   NHS ester (functionalized)
storage temp.   −20°C



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


1 g in poly bottle

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Product of Ocean Nanotech; LLC.

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NONH for all modes of transport
WGK Germany 


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Protocols & Articles


Iron Oxide Nanoparticles, Characteristics and Applications

Iron oxides are common natural compounds and can also easily be synthesized in the laboratory. There are 16 iron oxides, including oxides, hydroxides, and oxide-hydroxides. These minerals are a resul...
Alice Bu
Partner and Operations Manager, Ocean NanoTech LLC
Keywords: Bacterial conjugations, Cancer, Ligands, Magnetic resonance imaging

Magnetic Nanoparticles for Cancer Theranostics

Saumya Nigam,1 Lina Pradhan,2 and D. Bahadur*3 1IITB-Monash Research Academy, IIT Bombay, Powai, Mumbai, India 2Centre for Research in Nanotechnology & Science IIT Bombay, Powai, Mumbai, India 3Depar...
Keywords: Apoptosis, Bacterial conjugations, Cancer, Diagnostic, Magnetic resonance imaging, Materials Science, Nanomaterials, Nanotechnology, Reductions

Micro- and Nanofabricated Biomaterials for the Study of Cells and Microtissues

Phin Peng Lee, Karen E. Samy, Miquella G. Chavez, Alec Cerchiari, Tejal A. Desai* Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA 9415...
Keywords: Absorption, Adhesion, Amplification, Apoptosis, Biomaterials, Cancer, Cell culture, Cell proliferation, Diffusion, Immobilization, Indicators, Infrared spectroscopy, Ligands, Magnetic resonance imaging, Materials Science, Microscopy, Molecular biology, Nanotechnology, Semiconductor, Solvents

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