As well as having huge implications for creating more realistic looking (and feeling) robotics, the new lightweight material could have a profound impact on helping amputees. The man behind the graphene skin, Dr Ravinder Dahiya has begun developing his own 3D printed hands, aiming to help provide amputees with affordable and lightweight limbs. Thanks to its lack of batteries and the relatively low price of silicon and graphene, including the hands, these robotics only cost $350 to make. This is significantly cheaper than the standard battery-operated prosthesis -- which typically cost tens of thousands of dollars. Dahiya released a brief video demonstrating the capabilities of a prototype hand, showing the gentle touch in action.