Hydrogel remembers its shape – just add water

Scientists have created a shape-remembering material out of synthetic DNA that is eerily reminiscent of T-1000, the liquid metal assassin in the hit sci-fi film Terminator 2.

“It is almost as soft as water and it is still gel. And water you cannot stretch, but this gel can stretch. That is why it is very, very unusual,” Dan Luo, a professor of biological and environmental engineering at Cornell University, told NBC News.