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believes the work is remarkable for a number of reasons: This is the first report describing single-walled nanotubes of an inorganic compound that have been prepared in large amounts and with precise control of the tube diameter, he points out. "The fact that MoS2 can fold into such a small-diameter (0.96-nm) nanotube is also remarkable," he says. Such nanotubes possibly could be used to separate gas mixtures such as H2/O2--the hydrogen would pass through, leaving the larger oxygen molecules behind.
It should also be possible to tune the optical properties of these nanotubes all the way from the ultraviolet-visible to the infrared using the tube's diameter and chirality
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