Wow! After my grandfather had one of his legs amputated I have a new respect for what these folks have to deal with. This look like a step in the right direction.... Did I just say that?[Gizmodo]
This little vo-tech called "MIT" is working on a project to develop "biohybrid" limbs that will use not only mechanical assistance to help amputees get around, but also regenerated tissues and implanted sensors to control the prosthetics. It sounds like a project to take much of the various existing prosthetic technology and bundle it into a nervous system-controlled next-gen system: fluids that solidify into paste when in a magnetic field, springs, artificial constricting polymer muscles, implanted rice-sized microchip sensors; it's not that all this is new, so much as it is an effort to bring the best tech together.
'Biohybrid' limbs for amputees [NearNearFuture]