The arrival of nanomachines that could help repair our bodies is a long way off. Before we can design these devices, we need to understand how things work on this tiny scale. Most of this research is still at a very early stage.
Scientists at Oxford University are studying how the tails - or 'flagella' - of some bacteria work. This type of tiny motor could be used in future as a propeller for delivering drugs around the body.
Scientists are studying how the tails of some bacteria work so they can design tiny propellers to deliver drugs around the body. Video: Rowland Institute, Harvard Broadband Version
