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Old materials, new challenges?

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Fumed silica has been used as an anti-caking agent in foods for several decades. Does new research suggest that the use of this engineered nanomaterial needs to be re-examined, asks Andrew D. Maynard.

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Correspondence to Andrew D. Maynard.

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Maynard, A. Old materials, new challenges?. Nature Nanotech 9, 658–659 (2014). https://doi.org/10.1038/nnano.2014.196

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