McGill researchers are exploring a new technique that uses 3D printing and hydrogels. It has the potential not only to improve biomedical implants but could also be useful in the development of human-machine interfaces such as touch screens and neural implants. Biomedical devices like pacemakers or blood pressure sensors that are implanted into the human body need to be fabricated in such a way that they conform and adhere to the body – and then dissolve at the right time.