Multiwalled Carbon Nanotube Yarn
This scanning electron microscope image shows nanotube yarn fibers drawn from a "nanotube forest."
Nanometer and micron-sized yarn or fibers drawn from multiwalled carbon nanotubes can have tensile strengths comparable to or exceeding those of spider silk. Replacing metal wires in electronic textiles with these nanotube yarns could lead to important new functionalities, such as the ability to actuate (as an artificial muscle) and to store energy (as a fiber super-capacitor or battery).
The yarn's diameter is about 1 µm. The nanotubes from which it is being drawn are each about 10 nm in diameter.
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