1.4 Nanoparticles Flashcards
1
Q
What are nanoparticles?
A
nanoparticles are structures that are 1-100nm in size and contain a few hundred atoms
2
Q
What is the surface area to volume ratio in nanoparticles?
A
as the side of a cube decreases by a factor of 10, the surface area to volume ratio increases by a factor of 10.
3
Q
Why do nanoparticles have properties from the same bulk material?
A
This is due to their high surface area to volume ratio.
4
Q
What are the benefits of using nanoparticles in sun cream?
A
benefits of nanoparticles in sun creams, including better skin coverage and more effective protection from the Sun’s ultraviolet rays.
5
Q
What are the risks of having nanoparticles in sun cream?
A
potential cell damage in the body and harmful effects on the environment.
