• Question: what is nanoscience

    Asked by kennedy10 to Pip on 26 Jun 2012.
    • Photo: Philippa Bird

      Philippa Bird answered on 26 Jun 2012:


      Great question!
      Nanoscience is the science of really tiny particles, a nanometre is a billionth of a metre (imagine a billion pound coins in a huge tower and how big that is and then one pound coin next to it, quite a difference!). “Nanoparticles” have lots of advantages over the big versions of things because they usually have enhanced chemical and physical properties. So gold, for example, is inert in bulk, but very reactive as a nanoparticle. It’s to do with the vast surface area of tiny particles.
      Nanoscience has absolutely loads of uses in the world, and many more are being created.

      Here is a list of things it is being researched for:
      Better solar panels
      Bigger memory storage in computers
      More effective medical treatments (including nanoparticles that can tell when you’re ill and automatically release a drug)
      Catalysts in cars
      Make carbon dioxide into more useful things
      Stem cell therapies (scaffolds to put stem cells onto)
      Making planes lighter and stronger

      Nanotechnology is already used in:
      Plasters, silver nanoparticles, antibacterial
      Suncream, titanium dioxide nanoparticles, absorbs sunlight
      Smart phones and computers
      Pregnancy tests
      Self-cleaning surfaces, such as windows
      Scratch-resistant coatings

      So you can see… from important big things to just useful things, Nanotechnology has it covered!

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