Researchers have invented a new trick for making electrical devices from nanoscale wires¿blowing bubbles. A team suspended metal nanowires or carbon nanotubes in a polymer-based liquid and then used machines similar to those in the plastic film industry to blow the liquid into a bubble. By touching the bubble to silicon wafers, plastic films and other surfaces the researchers could efficiently transfer the nanostructures onto a substrate, according to a paper published recently in Nature Nanotechnology.