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. 2020 Feb 1;12(2):115. doi: 10.3390/pharmaceutics12020115

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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The reactive oxygen species (ROS) concentration in 4T1 cells that were treated with H₂O₂, catalase/PLA-coated titanium dioxide plate/H₂O₂, and PAAM-n(catalase)/PLA-coated titanium dioxide plate/H₂O₂. The bar was 20 μm.