Intended for healthcare professionals


Nanotechnology: small science, big deal

BMJ 2005; 330 doi: (Published 03 March 2005) Cite this as: BMJ 2005;330:544
  1. Tony Delamothe, web editor (

    An exhibition at the Science Museum, London, until 31 August 2005, after which it will tour the United Kingdom

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    The Science Museum's latest exhibition defines its subject as the active making, manipulation, and measurement of extremely tiny things. These things are measured in nanometres, with a nanometre being a millionth of a millimetre, or about as far as a fingernail grows in a second.

    At the nanoscale, materials behave differently, and it's their weird and wonderful properties that nanotechnology sets out to exploit. Increased reactivity is one such property—a function of the increased ratio of an object's surface area to its volume as …

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