Nanomaterials

Question 1

Nanostructures on the toes of geckos

Answer 1

Spatulae
- Forces of attraction: instantaneous dipole-induced diploe forces of attraction.
-As the spatulae possess a high surface-to-volume ratio and billions of spatulae per gecko, they create a huge collective surface area of contact.
- total spatula-wall interactions generated are translated into very strong and attractive forces, capable of supporting many times the animal weight

Question 2

Explain how nanoparticles help to increase the rate of these gaseous reactions.

Question 3

Describe the properties of nanomaterials.
Using your understanding of molecular forces, explain how this property enables a gecko to support its weight and stick to the wall.

Question 4

Describe the structure of graphene

Question 4

Effect of nanoparticles on human health and the environment.

Question 5

effect of nanoparticles on human health and the environment