Nanoscience

What size are nanoparticles?

1nm - 100nm

What allows nanoparticles to be effective catalysts?

High surface are to volume ratio

What are the uses for nanoparticles?

- Medicine
- Catalysts
- Circuits
- Antibacterial properties
- Cosmetics

What type of nanoparticles have antibacterial properties?

Silver nanoparticles

Why are nanoparticles used in cosmetics?

They absorb into the skin easily

Why are people wary about using nanoparticles?

We do not know the long term affects

How are the risks minimised?

They are tested thoroughly

What can happen to silver nanoparticles?

They wash into lakes and river and can damage environment

What's the problem with using nanoparticles in cosmetics?

We do not know how much they are absorbed