Broken screens of portable telephones might be a thing of the past soon with the development of new self-healing polymers that can be used for the coating of the screen.
Self-healing polymers produced at low cost - technology science news

A new study reports the production of a new self-healing polymer that is cheap and can be applied to for instance the coating of cell phone screens, plastics, and paints. The researchers took advantage of interactions between co-polymers that look like spaghetti strands with little brushes on the side. When they get longer, they become more entangled, and the side groups interlock so that it becomes harder to pull them apart. Also, when they are being pulled out, they come back together, and are self-healing like our skin. Researchers expect that the polymers can be synthesized at an industrial scale relatively soon.

Read the full story: Clemson University
Scientific publication: Science