Nanoparticles Flashcards

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What is a nanoparticle?

A nanoparticle is a very tiny particle made of a substance, with a size between 1 nm and 100 nm.

Nanoparticles are about 1 x 10^-9 m to 1 x 10^-7 m across.

A nanomaterial is a material that contains nanoparticles, or has features that are between 1 nm and 100 nm in size.

Nanoscience is the study and use of very small structures such as nanoparticles and nanomaterials.

A bulk material is the same substance in larger pieces, made of a huge number of atoms, not tiny nanoparticles.

Nanoparticles can have different properties, such as different colour or reactivity, from the same substance in bulk form.

A nanoparticle usually contains only a few hundred atoms or molecules.

Because the particles are so small, many of their atoms are on the surface, so they can interact more easily and behave differently.