Nanotubes

Nanotubes, or Carbon Nanotubes (CNTs), are one of the main nanomaterials applied in nanotechnology research and development. These Nanotubes are composed of carbon atoms connected in a cylindrical shape and have either open ends or close ends. CNTs can measure down to 1nanometer and up to several centimeters of length and diameter. There are two types of carbon nanotubes, 1- Single-walled nanotubes (SWNTs) and 2- Multi-walled nanotubes( MWNTs).
A hybrid of Graphene and Nanotubes exists since recently. The hybrid structure consists of graphene layers rolled along the sidewalls of a Multi-walled nanotube.

The different types of CNTs are used in many fields such as in biological, electronical, mechanical, optical, textile and space applications. Within these fields, the carbon nanotubes can be used as semiconductors, thermal conductors, filters, lightweight strong material replacement among others.

Besides current CNTs applications, in the far future, a tether will be manufactured by several nanotubes to create a transportation method between the Earth’s surface and a space station.

  • Flexibles Halbleitermaterial für Elektronik, Solartechnologie und Photokatalyse

    Flexibler Halbleiter aus Zinn, Iod und Phosphor (SnIP) mit Doppelhelix-Struktur Bild: Andreas Battenberg / TUM

    Die Doppelhelix hat als stabile und flexible Struktur des Erbguts das Leben auf der Erde erst möglich gemacht. Nun hat ein Team der Technischen Universität München (TUM) eine Doppelhelix-Struktur auch in einem anorganischen Material entdeckt. Das Material aus Zinn, Iod und Phosphor ist ein Halbleiter, besitzt außergewöhnliche optische und elektronische Eigenschaften und ist mechanisch hoch flexibel.

  • International Stir Caused by Unusual Study on Noble Gases

    Nobel gases are used as light sources in fluorescent tubes. Foto: thauwald-pictures/fotolia.com

    Experts acclaim the research findings of the team of authors from Bremen, Leipzig, Wuppertal and the USA as a scientific breakthrough in basic research. The world leading journal “Applied Chemistry” features the study on its cover page.

    Reactions with noble gases have long been a cause of fascination for chemists. The substances used as light sources in fluorescent tubes, for instance, are extremely slow to react in respect of their chemical reactions – they are therefore called “noble”. A newly published study in this area of basic research is currently causing quite a stir in expert circles.

  • Safer Food – Less Waste

    Biobased film for sustainable packaging. © Fraunhofer IGB

    At ICE 2019, the Fraunhofer Institutes for Applied Polymer Research IAP, for Interfacial Engineering and Biotechnology IGB and for Organic Electronics, Electron Beam and Plasma Technology FEP will present innovative technologies for sustainable food packaging. They each have extensive expertise in processing, process development and control, the development of special polymer films and the deposition of ultra-thin layers for the packaging industry.

  • Tests show no nanotubes released during utilisation of nanoaugmented materials

    OCSiAl’s core product - TUBALL that contains more than 80% of single wall carbon nanotubes © OCSiAl

    Recent research on the most novel additive – single wall carbon nanotubes – has demonstrated an impressive result: in contrast to conventional additives, no protruding particles appear and no free-standing particles are released when materials containing these nanotubes are being mechanically stressed during simulation of their typical use. Furthermore, nanotube-formulated materials release significantly fewer micro-size or ultrafine particles, demonstrating their high strength and cohesion improvement.