NANOPOLIS - Multimedia Education and Courses in Nanotechnology

Multimedia Education and Courses in Nanotechnology.

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Prof. Gary Bowlin
Virginia Commonwealth University,USA

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Dr. Alain Filhol
Institut Laue-Langevin,
Grenoble, France

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Argonne National Laboratory
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Dr. Sandra Ribeiro
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Dr. Dominique Cornuejols
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Dr. Karen Diederichsen
Hahn-Meitner-Institut Berlin

Dr. Alain Filhol
Institut Laue-Langevin

Prof. Roger Pynn
Indiana University and Spallation Neutron Source

Dr. Alain Menelle
Laboratoire Lion Brillouin (CEA/CNRS)

Dr. Marie-Pauline Gacoin
SOLEIL Synchrotron

"Exploring Nanotechnology" multimedia encyclopedia
Educational excerpts

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Nanostructures »Rosette nanotubes

Fabrication

Instruments

Applications

Rosette nanotubes
Rosette nanotubes are tubes of nanometric sizes obtained through the self-assembly of organic molecular components.

The basic unit for the self-assembly of rosette nanotubes is a base borrowing the structural properties of guanine and cytosine. Thus, the basic unit is hydrophobic and has complementary donor-donor-acceptor and acceptor-acceptor-donor H-bond arrays on its sides.

The self-assembly process takes place in two stages. At first, six basic units self-assemble into a supermacrocycle ring. In the second stage, supermacrocycle rings stack forming a nanotube with a central hollow pore.

Although very recently discovered (2001) rosette nanotubes allow us to envision interesting applications due to their tubular structure combined with the flexibility given by organic chemistry, which opens up a large range of possibilities for their functionalization.

It is thought that rosette nanotubes could one day be used for othopaedic implants since one can attach growth factors and specific bone recognition peptide sequences that will preferentially attract bone cell adhesion.

Similarly to the peptide nanotubes, rosette nanotubes could act as antibiotics by inserting in to the membrane of bacteria and sucking up nutrients.

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This multimedia resource is a sample excerpt from the Exploring Nanotechnology CD-ROM, 3rd tome of the NANOPOLIS™ encyclopedia series. The CD-ROM is available for purchase.