Nanoparticles

Question 1

Name a key feature of nano particles

Answer 1

They have a large surface area to volume ratio

Question 2

Name some uses of nanoparticles

Answer 2

Catalysts

Medicine

Electricity

Cosmetics

Question 3

Why are nanoparticles used as catalysts

Answer 3

Nanopartciles have a large surface area to volume ratio so smaller quantities are needed to be effective (than for fine material particle sizes)

Question 4

How are nanoparticles used in medecine

Answer 4

Nanoparticles such as fullerenes can cage other molcules inside of them.. This means that drugs can be transmitted to inside specific cells in the as treatment

Question 5

Name a risk of nanoparticles

Answer 5

Nanoparticle technology is relatively new, it is possible that when used in cosmetics such as sunscreen, nano particles can be absorbed into the bodyand enter our cells, but the effect that it has on our bodies is not fully understood yet