The body’s nervous system conducts electricity, too. So researchers in Beijing have put two and two together- why not use metal to help repair damaged nerves?
Nerve damage is tricky- not only can it cause a spectrum of different pain sensations, but it’s generally hard to repair. Current methods for grafting nerves back together are risky, and the potential for muscle damage is a concern.
By using a liquid metal alloy (no, not steel, but gallium, indium, and selenium), researchers were able to bridge the gap between nerves in bullfrog legs. They found that this alloy conducted electrical signals about as well as a healthy nerve would! And not to worry- this alloy is a liquid at room temperature, so once the nerve has healed, it can be removed with a syringe. While there are definitely some limitations to the use of metal in the human body, the potential for its use in promoting nerve growth and healing is interesting. Read more about it here: