A team at Kyoto University and the University of Oxford has used DNA as the building blocks for a motor that runs along tiny tracks. The tracks all have switches and the network is programmable -- just like a computer.
The DNA is manipulated with a technique called “DNA origami.” Just like its paper counterpart, this method uses DNA to fold structures into two and three dimensions. The folding of the molecules is done via sequencing in such a way that the DNA naturally self-assembles into the desired shape. The tiny tracks were laid down on top of tiles, also made of DNA.