Researchers at the Delft University of Technology have developed the smallest ever flow-driven motor from DNA that utilises electrical or salt gradients to generate mechanical energy. For the ...

Every year, there are 3,500 reported cases of swallowed button batteries. The tiny batteries can move through the digestive system normally. However, if one stays in a person's body too long, its ...

It may sound like a machine from a sci-fi film, but a tiny self-folding ‘origami' robot that can walk and swim, before self-destructing, has been revealed. Small enough to sit on a fingertip and ...