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Nature 431, 410-411 (23 September 2004) | doi:10.1038/431410b; Published online 22 September 2004

Materials science:  The art of restoration

David Erhardt1

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There are various techniques for the restoration of artwork — how effective and safe these are also varies. 'Reversible' gels could, however, provide a less risky way to reverse the ravages of time.

The cleaning of paintings is one of the most controversial activities that can be conducted in a museum. Unlike many artefacts, much of the value of a painting (both aesthetic and monetary) depends on its appearance, which in turn depends on the condition of its surface, especially the first few micrometres.

  1. David Erhardt is at the Smithsonian Center for Materials Research and Education, Smithsonian Institution, Museum Support Center, 4210 Silver Hill Road, Suitland, Maryland 20746-2863, USA.
    e-mail: Email: erhardtd@scmre.si.edu