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Nature 438, 155 (10 November 2005) | doi:10.1038/438155b; Published online 9 November 2005

Open Innovation Challenges

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Market Watch

Colin Macilwain

Nanotechnology stocks have taken a tumble this autumn, with a couple of particularly troubled stocks compounding the problems of a generally weak market in technology stocks.The Lux Nanotech Index, which comprises companies supplying nanotechnology products as well as some major industrial companies that rely heavily on nanotechnology, dipped close to its lowest point since 2003 at the end of last month.

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