Our body is not so good at repairing damages. It can heal a wound, but not a spinal cord injury for example. In the latter case, you'll be paralyzed for life.Because of this, Maritza Rovers, biomedical engineer at TU Eindhoven, is working on a solution. Together with her team, she is working on some kind of gel that can boost your cells to fix damaged tissues. Creating such a gel is quite the hassle. You can best compare it to... building a construction with K'NEX, in which every part needs to be placed correctly to get the wanted results.