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. 2014 Jul 21;29:e2014004. doi: 10.5620/eht.2014.29.e2014004

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Copyright © 2014 The Korean Society of Environmental Health and Toxicology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — In vitro skin corrosion test using KeraSkin^TM treated with zinc oxide nanoparticles (ZNPs), titanium oxide nanoparticles (TNPs) and their mixtures. (A) Cell viability was measured after 3 minutes treatment of test materials. (B) Cell viability was measured after 60 minutes treatment of test materials. The viability of human skin model was greater than 50% for 3 minutes treatment and 15% for 60 minutes treatment. PBS, phosphate buffered saline. *p<0.05, ***p<0.001.