Nano object

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A nano- object is a material that has at least one external dimension in the nanoscale range, i.e. H. in the range from 1  nm to 100 nm. This standard is generally accepted scientifically. So count

  • Nanoparticles (three external dimensions in the nanoscale range),
  • Nanofibers including nanotubes (two external dimensions in the nanoscale range) and
  • Nanoplate (an external dimension in the nanoscale range)

to the nano-objects. They are produced by grinding processes (top-down process) or by atomic or molecular self-assembly (bottom-up process).

Nano-objects are referred to as “technical nano-objects” if they were developed for a specific function or use. These are used, among other things, as reinforcing materials in plastics processing.

So-called “unintentional nano-objects” arise as unintended by-products of a process.

Scanning Mobility Particle Sizers (SMPS) and electrical low-pressure impactors (ELPI) can be used to measure nano-objects .

literature

  • DIN CEN ISO / TS 80004-2; DIN SPEC 52400-2: 2017-09 Nanotechnologies; Technical dictionary; Part 2: Nano-objects (ISO / TS 80004-2: 2015); German version CEN ISO / TS 80004-2: 2017. Beuth Verlag, Berlin.

Individual evidence

  1. ↑ Stefan Engel: Synthetic nanomaterials - confusion of terms and effects on occupational safety. In: Hazardous substances - cleanliness. Air . 70, No. 5, 2010, ISSN  0949-8036 , p. 161.
  2. ↑ VDI 6223 sheet 1: 2013-06 Bionics; Bionic materials, structures and components (Biomimetics; Biomimetic materials, structures and components). Beuth Verlag, Berlin, pp. 4-6.
  3. ↑ Albert Hellmann, Kilian Schmidt, Siegfried Ripperger, Markus Berges: Release of ultrafine dusts during the mechanical processing of nanocomposites. In: Hazardous substances - cleanliness. Air. 72, No. 11/12, 2012, ISSN  0949-8036 , pp. 473-476.
  4. ↑ Carsten Möhlmann, Johannes Pelzer, Albert Hellmann, Jens Niklas: Metrological determination of ultrafine and nanoparticles in mechanical processing of nanomaterials and their composites. In: Hazardous substances - cleanliness. Air. 72, No. 11/12, 2012, ISSN  0949-8036 , pp. 463-466.