new materials

• behave differently depending on conditions such as temperature
• nitinol is a 'shape memory alloy'

nitinol

• metal alloy of titanium and nickel
• when cool you can bend and twist it- bend it too far and it stays bent
• when its heated above a certain temperature it will go back to remembered shape. eg:glasses frames when bent can be put in hot water and theyll go back to to their shape.
• braces also contain nitinol as it warms in the mouth and tries to return to original shape by pulling the teeth forward.

• contain roughly a few hundred atoms
• fullerness: molecules of carbon shaped like hollow balls or closed tubes 
• carbon atoms are arranged in hexagonal rings 

uses:

• huge surface area so good for catalysts 
• nanoparticles can make sensors to detect  a specific molecule
• stronger lighter building material 
• sun tan cream or deodrant as the small particles dont leave white marks 
• nanomedicines as the fullerness pf nano particles makes them easier to be absorbed by the body