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The astronauts will be able to move and generate energy from that motion.

Astronauts’ spacesuits may one day be covered in motion-sensitive proteins that could generate power from the astronauts’ movement, according to futuristic research being conducted by a new lab in Cambridge, Massachusetts, US. Such “power skins” could also be used to coat future human bases on Mars, where they could produce energy from the Martian wind.

[…]

They are focusing on a protein called prestin, which is found in the outer hair cells of the human ear. In the cell membranes of these cells, prestin converts electrical voltage into motion, elongating and contracting the cell. This movement amplifies sound in the ear.

However, prestin can also work in reverse, producing electrical charges in response to mechanical stresses, such as tiny vibrations. Each protein is only capable of making nanowatts of electricity, but Matthew Silver and Kranthi Vistakula, both of IntAct Labs, believe that many proteins used together may be able to power small devices or help charge a battery.

(via new scientist space)