Nano science

• Nanoparticles

  • Tiny particles which are between 1 and 100 nanometres (nm) in size
• Surface area to volume

  • The surface area to volume ration for a cubed shape
  • $surface\ area\ \div volume$
• Use of nanoparticles

  • Medical treatments
  • Cosmetics, deodorants and sunscreens
  • Electronics and catalysts
• Risks

  • Possible to breathe in/ pass through cells
  • Nano particles could catalyse and cause harmful reactions