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900148 Sigma-Aldrich

Iron oxide (II,III), nanoparticles

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

  •  NACRES NA.23



Related Categories 26: Fe, Biomedical Materials, Iron Oxide Nanoparticles, Magnetic Materials, Materials Science,
Quality Level   100
form   dispersion
packaging   pkg of 1 mL
storage condition   do not freeze
concentration   1 mg/mL in H2O
avg. part. size   30 nm (TEM)
functional group   streptavidin
storage temp.   2-8°C


General description

Recent docking studies highlight the potential interaction of iron oxide (II,III) nanoparticles (IONPs) with the SARS-CoV-2 spike protein receptor binding domain. This may target viral entry in host cells and also render virions inactive.


IONPs may be used in the nanoparticle preparation for evaluation of their antiviral property against H1N1 influenza A virus.

Iron oxide nanoparticles exhibit biocompatibility and non-toxicity and are used as magnetic resonance imaging contrast agents, gene carriers for gene therapy, therapeutic agents for hyperthermia-based cancer treatment, magnetic sensing probes for in vivo diagnostics and for target specific drug delivery.

Legal Information

Product of Ocean Nanotech, LLC.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles


Recent Developements in Magnetic Iron Oxide Nanoparticles for Non-Invasive Bioimaging

1 Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, USA 2 Ocean Nanotech, LLC, 7964 Arjons Drive, San Diego, California 92126, USA *E-mail: hm...
Keywords: Absorption, Clinical, Diagnostic, Diagnostic Imaging, Diseases, Electron spin resonance, Growth factors, Infrared spectroscopy, Ligands, Magnetic resonance imaging, Microscopy, Microwave synthesis, Nanomaterials, Positron Emission Tomography, Scanning electron microscopy, Transmission electron microscopy

Synthesis and Application of Shape-Controlled Fe3O4 Nanostructures

Magnetite (Fe3O4) nanocrystals have extensive applications in drug and gene delivery,1 field-directed assembly,2 energy storage,3 and catalysis4 due to their excellent magnetic properties, ready avai...
Keywords: Absorption, Cancer, Diffraction, Ligands, Magnetic resonance imaging, Microscopy, Nanomaterials, Nucleic acid annealing, Reductions, Scanning electron microscopy, Solvents, Sonication, Transmission electron microscopy, transformation

Peer-Reviewed Papers


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