Breathalyser detects 17 diseases

A new breathalyser can detect the presence and amount of the 100 or so chemicals present in our exhaled breath. Many diseases, such as kidney cancer and Parkinson’s, can be detected and  the presence of one disease does not prevent the detection of others.

 

 

Graphene

Sheets of carbon atoms, which are one atom thick and known as graphene, are now in many GCSE and A Level specifications. Mixing graphene with polysilicone, the substance found in Silly Putty, has made it conduct electricity. It could be used to monitor pulse and blood pressure as its electrical resistance is so sensitive to pressure.