Experiments with a new three-dimensional model of liver tissue find that the toxic effects of nanoparticles are reduced when compared with tests that use two-dimensional models.
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Stevens, M. Testing in the third dimension. Nature Nanotech 4, 342–343 (2009). https://doi.org/10.1038/nnano.2009.136
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DOI: https://doi.org/10.1038/nnano.2009.136