Nanoparticles

• Nanoparticles have a diameter between 1-100 nanometers
• Nanoparticles only contain a few hundred atoms
• Nanoparticles have a huge surface area : volume ratio
• The uses of Nanoparticles include:

  • Medicines
  • Cosmetics
  • Suncreams
  • Catalysts
• It is possible that nanoparticles can be absorbed into the body and enter our cells
• No-one knows the potential long-term effects of nanoparticles being absorbed into the body
• Nanoparticles need to be studied and used carefully