Researchers have developed an exceptionally sensitive touch sensor that revolutionises the field of robotics and bionics by sensing even without direct contact with the objects it detects.

Microscopic crystals could soon be zipping drugs around your body, taking them to diseased organs. In the past, this was thought to be impossible - the crystals, which have special magnetic properties, were so small that scientists could not control their movement. But now a team of Chinese researchers has found the solution, and their discovery has opened new applications that could use these crystals to improve - and perhaps even save - ma...