How about combining graphene with the humble elastic band to make a big difference in the field of health care by using them to monitor motion associated with breathing and heart rate as well as joints?
The rubber bands can be infused with graphene and become conductive whilst remaining stretchy. Connect them to a power source and a subtle movement gives a detectable effect on the current flowing through them.
You could then put them into sensor suits for use on vulnerable patients or into performance-assessing athletic clothing.
They should be low cost but their manufacture would remain an unknown as the market continues to determine the quality of graphene required for various applications.
What are the next steps? Not sure, but perhaps you’d care to comment?