The fibers are made by rolling conducting and insulating polymer films around a copper wire, which are then heated to about 200 degrees C (about 400 degrees F) and stretched out until soft and elastic.

FORBES: Written by Bryan Nelson

Takao Someya of the University of Tokyo has built for himself a stretchy, flexible conducting material using carbon nanotubes mixed with a polymer.

ENGADGET: Another flexible circuit project emerges, carbon nanotubes to blame