Nanoparticles:
Really tiny particles, 1-100 nanometres across, are called nanoparticles. Nanoparticles contain roughly a few hundred atoms. Nanoparticles include fullerenes. These are molecules of carbon, shaped like hollow balls or closed tubes. They are arranged in hexagonal rings. A nanaoparticle has very different properties from the 'bulk' chemical that its made from.
Using nanoparticles is called Nanoscience. Many new uses for them are being developed:
- They have a very large surface area to volume ratio, so they could help make new industrial catalysts
- They can be used to make stronger, lighter materials
- You can use them to make lubricant coatings for artificial joints and gears.
- Nanotubes can conduct electricity, so they can be used in tiny electric circuits.
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