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. 2015 Feb 28;10:94. doi: 10.1186/s11671-015-0796-4

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© Xu et al.; licensee Springer. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.

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The cytotoxicity of TiO ₂ Ws for K562 and HELF cells at 24 h in vitro . Notes: (a) The cytotoxicity of TiO₂ Ws for K562 and HELF cells (P > 0.05); (b) The cytotoxicity of TiO₂ Ws (no UV) and TiO₂ Ws (with UV) for K562 cells (P < 0.05).