A team of scientists at the University of South Mississippi have presented research that indicates gadgets of the future could be made of a self-healing plastic material that is designed to ‘bruise’ when dropped or scratched in order to make damaged areas noticeable to the user. The device could theoretically then be placed in direct sunlight for a few minutes in order to the material to literally heal itself, repairing the damage and eventually causing the bruising to fade, bearing striking similarities to human skin.