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Carbon Nanotubes and AFM

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  • david lyndel
    Hi Z and all Carbon Nanotubers: The print edition of Nature Nanotechnology, Vol. 3, No. 6 June (2008) includes an article on page 337 Atomically resolved
    Message 1 of 1 , Jul 1, 2008
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      Hi Z and all Carbon Nanotubers:

      The print edition of Nature Nanotechnology, Vol. 3, No. 6 June
      (2008) includes an article on page 337 "Atomically resolved
      mechanical response of individual metallofullerence molecules
      confined inside carbon nanotubes" by M. Ashino et al.
      An online version was published earlier doi:10.1038/nnano.2008.126

      Researchers from Germany, The Netherlands, Hong Kong and the UK
      state in the abstract: "The hollow core inside a carbonnanotube can
      be used to confine single molecules and it is now possible to image
      the movement of such molecules inside nanotubes...Here we report on
      precise measurements of the mechanical responses of individual
      mettlofullerene molecules (Dy@C.82) confined inside single-walled
      carbon nanotubes to the atom at the tip of an atomic force microscope
      operated in dynamic mode."

      The Dy@C.82 metallofullerene molecules were a dysprosium atom
      encapsulated within a C.82 fullerene and then put into SWNTs using
      thermal treaments. They deposited these " 'peapod' structures onto
      insulating SiO.2 layers on silicon substrates. The AFM allowed "the
      determination of atomic structures independently of the electronic
      properties." This is an advantage over the use of STM analysis.

      Topographies of empty SWNT were compared with those of the (Dy@C.82)
      @SWNT peapod making it possible to "identify two types of qualitively
      different features."

      Some papers you might also consider reading:
      1-Encapsulated C.60 in Carbon Nanotubes B.W. Smith et al.
      Nature 396, 323-324 (1998) I give it ***(three stars) :)

      2- Water Conduction through the hydrophobic Channel of a Carbon
      Nanotube G. Hummer et al.
      Nature 414, 188-190 (2001) ***

      3-Imaging of Single Organic Molecules In Motion M. Koshino
      Science 316, 853 (2007) ****
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