Chapter 9: Nanoparticles

Nanoparticles

________ are also being used in cosmetics.

surface area

The ________ to volume ratio is an important factor as it can affect the way that a particles behaves.

Nanoparticles

________ have a very high surface area to volume ratio, this means the surface area is very large compared to the volume.

nanoparticle size

1nm to 100nm

Surface area

______to volume ratio

Nanoparticles used

in sun-creams, give better skin coverage than normal

Effects of nanparticles

non-known at the mometn

Nanoparticles commercial uses

cosmetics such as moisturisers

Uses of nanoparticles

good for catalysts because of there large surface area to volume ratio

Some nanoparticles

______could conduct electricity

Silver nanoparticles

have antibacterial properties

Nanomedicine

idea that tiny particles are absorbed easily by the body

Bad nanoparticles

might damage the environment

Nanoparticles ratio explained

as particles decrease in size, the surface area increases in relation to volume

Properties differ

_____depending on whether it's a nanoparticle or in bulk