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Graphene,  the 'miracle material undergoes a self repairing process to mend holes. This discovery has been made by researchers at The University of Manchester and the SuperSTEM  facility at STFC's Daresbury Laboratory (United Kingdom). Graphene, which is made of sheets of carbon just one atom thick, is a promising material for a wide range of future applications due, for instance, to its exceptional electronic properties.

The team, led by Professor Kostya Novoselov, who shared a Nobel Prize in Physics in 2010 for exploiting the remarkable properties of graphene's, was originally looking to gain a deeper understanding into how metals interact with graphene, essential if it is to be integrated into practical electronic devices in the future

Source: http://www.manchester.ac.uk/aboutus/news/display/?id=8544