Engineers have developed a new material that mimics human cartilage - the body's shock absorbing and lubrication system, and it could herald the development of a new generation of lightweight bearings.
To deliver reliable mechanical and electric properties, nanomaterials must have consistent, predictable shapes and surfaces, as well as scalable production techniques. Engineers are solving this problem by vaporizing metals within a magnetic field to direct the reassembly of metal atoms into predictable shapes.
Engineers develop a new version of their wireless implant that allows for multiple stimulators to be programmed and magnetically powered from a single transmitter outside the body. The implants could be used to treat spinal cord injuries or as pacemakers.