Although the concept of “self-healing” materials might sound like something out of a sci-fi movie, an iPhone 4S case with such properties already exists. And what might surprise you even more is that it is made by Nissan (yes, that Nissan). It is known as the Nissan Scratch Shield iPhone case, and what gives it its magical properties is the same high-tech paint finish that the car manufacturer uses in some of its vehicles. The case, made out of ABS plastic, is covered with polyrotaxane-based paint, which helps it repair on its own and gives it a bit of extra grip too. According to Nissan, a small scratch will disappear in a matter of hours without the need for any user intervention. The comp... »read more

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