Nanoparticles made from magnetic materials, such as iron-based alloys, are notab

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1. Nanoparticles made from magnetic materials, such as iron-based alloys, are notably used to produce?

Ordinary permanent magnets, unrelated to nanotechnology

Magnetic ions specifically

Magnetometers specifically

High-density magnetic data storage devices

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Magnetic nanoparticles allow data to be packed at extremely high density, making them valuable for advanced magnetic storage technology.