deodorants - silver nanoparticles have antibacterial properties
catalysts - huge surface area to volume ratio
nanoparticles have a diameter between 1nm and 100nm
nanoparticles have a large surface area to volume ratio, this is good because you need less of a material that is made up of nanoparticles to work effectively as a catalyst, rather than one that's made up of 'normal sized' particles.
disadvantages of using nanoparticles?
the way that they effect the body is not fully understood
unsure of long-term health impacts
products containing nanoparticles should be labelled
