It is known that smartphones have the most vulnerable spot – glass surfaces, which, when dropped on a solid surface, break or become cracked. Coatings with increased resistance to impacts also have drawbacks; scratches often appear on them. Material for self-healing surfaces could solve the problem, and scientists at the University of Tokyo managed to get it. As often happens, a material that can “heal” damage was obtained quite by accident, in the process of research to create new adhesive substances. Graduate student Yuu Yanagisawa noticed that if you put together the plates of polythiourea, a polymer similar in properties to rubber, and apply a little effort to them, then after half a minute they turn into a whole, and after a few hours the material can completely restore its properties . But what is especially important, the regeneration process is carried out at room temperature, although it was usually necessary to heat such compounds to the melting temperature. According to the young scientist, at first he himself could not believe the result, and to make sure, he had to repeat the experiment several times. The author of the development has not yet made plans for the soon practical application of this promising technology, at the same time, a group of scientists from the University of California announced the appearance of in the next three years the first devices with a self-healing coating.