Walking Molecule Now Carries Packages
Roland Piquepaille writes "Chemists from the University of California at Riverside designed two years ago a molecule which could move straight on a flat surface — a nano-walker if you wish. Now, they've found a way to force this walking molecule to carry packages. The nano-worker can now carry two CO2 molecules. And like yourself when you carry two heavy bags, this nano-worker is slower when it carries other molecules. The researchers think their discovery will lead to reliable ways of carrying molecules, an equivalent of the conveyor belts in today's factories."
What powers this thing?
From a previous article on the walker:
"Activated by heat or the nudge of a scanning tunneling microscope tip, DTA will pull up one foot, put down the other, and thus walk in a straight line across a flat surface. The planted foot not only supplies support but also keeps the body of the molecule from veering or stumbling off course."