5.2.4.2 Uses of Nanoparticles

Question 1

What are some uses of nanoparticles?

Answer 1

• highly selective sensors
• new cosmetics, e.g. sun tan cream and deodorant (make no white marks)
• lubricant coatings to reduce friction
• stronger, lighter building materials

Question 2

What would a good high surface area to volume ratio be used for?

Answer 2

• good catalysts

Question 3

What can conduction of electricity by nanotubes be good for?

Answer 3

• small electrical circuits for computers

Question 4

What are some possible disadvantages of using nanotubes?

Answer 4

• may be toxic to people
• may be able to enter brain from bloodstream and cause harm