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Cracked your mobile-phone display? In the future, the remedy might be as simple, and cheap, as shining some light on it.

That is according to Christoph Weder, a materials scientist at the University of Fribourg in Switzerland, and his colleagues, who have developed a type of rubbery plastic that 'self heals' when exposed to ultraviolet light. The material might one day be incorporated into varnish, paint or mobile-phone covers.

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Category: Science