Measured in the nanoscale, nanomaterials are materials that have at least one external dimension measuring 100 nanometers or less or internal structures measuring 100 nm or less. These may be present in the form of particles, tubes, rods, fibers or other geometries.
Examples of nanomaterials: Titanium dioxide is used as a white color pigment, for hydrophilic and antimicrobial surface coatings and for self-cleaning surface coatings.
Graphene another popular category of nanomaterials, is used for surface treatments, the new field of spintronics and as raw material for the fabrication of Carbon nanotubes and other carbon-based nanomaterials
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