New conductive plastic for printing electronics
It's way far away from being a reality, but a company called TDA Research says they've got a new conductive plastic called Oligotron that could someday be used to make spray-on organic LED displays and disposable electronic newspapers:
During manufacturing, Oligotron is mixed with a solvent that permits it to be ink-jet-printed into the shape of a circuit. Alternatively, a laser-printed mask on an overhead transparency can be made with the clear part in the shape of the circuit. In either case, ultraviolet (UV) light cures the material, making it solid and insoluble.
There are some other conductive plastics out there, but Oligotron is supposed to be the first one that uses noncorrosive solvents and so it's easier to actually make it into stuff.
