Knowledge hub

Durable, self-healing material

In July, a research team showed it had found a way to make a material that can quickly heal itself. According to New Scientist, the material is made up of three layers—two thin polymer walls with a liquid inside—which, when exposed to oxygen, will harden. This means when either of the walls is punctured, the liquid will quickly fill up the gap. In a video released by the research team, the material can be seen actually fixing a hole made by a bullet, in about a second. This could potentially allow it to have a wide range of applications on Earth as well. It could one day make for safer aeroplane hulls, fuel tanks, etc.