Today, a multitude of industries, including optics,
electronics, water purification, and drug delivery, innovate at an
unprecedented scale with nanometer-wide rolls of honeycomb-shaped
graphite sheets called carbon nanotubes (CNTs). Features such as
light weight, convenient structure, immense mechanical strength,
superior thermal and electrical conductivities, and stability put
CNTs a notch above other material alternatives. However, to supply
their rising industrial demand, their production must be constantly
scaled up, and therein lies the main challenge to using
CNTs.