Feb 5, 2014 — Many scientists have been trying to create neural implants that will let amputees regain a sense of touch and control. One version has let a Danish man feel the texture of things he's touching. But it's an experimental model that's not yet ready for use outside the laboratory.
Feb 20, 2013 — 3-D printing can be used to make food, guns and maybe human ears. Researchers say that using collagen to print out ear cartilage solves a lot of the problems in making new ears for people with birth defects or injuries.