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Nature 446, 963 (26 April 2007) | doi:10.1038/446963a; Published online 25 April 2007

Nanotech growing pains

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A licensing dispute over fuel additives could spell trouble for one of Britain's nanotechnology stars, as Katharine Sanderson reports.

A few months back, the outlook was bright for Oxonica. Last August, the nanotechnology firm signed a £6-million (US$12-million) deal to sell its nanoparticle-based fuel additive to the Turkish oil firm Petrol Ofisi.