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. 2012 Sep 4;7(9):e44688. doi: 10.1371/journal.pone.0044688

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© 2012 Li et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(A) Effects of different sizes of TiO₂-NPs on survival of nematodes. (B) Effects of different sizes of TiO₂-NPs on growth of nematodes. (C) Effects of different sizes of Ti-NPs on reproduction of nematodes. (D–F) Effects of different sizes of TiO₂-NPs on locomotion behavior of nematodes. (G–H) Comparison of intestinal autofluorescence in nematodes exposed to different sizes of TiO₂-NPs. Exposure of TiO₂-NPs was performed from L1-larvae, and the endpoints were examined when nematodes developed into the adults. Ti-NPs, TiO₂-NPs. The Bars represent mean±S.E.M. *p<0.05, **p<0.01.