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. 2017 Sep 19;7(9):279. doi: 10.3390/nano7090279

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© 2017 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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Fluorescence images showing cytoskeletal actin filaments in skin (a) and lung (b) fibroblasts after 24 and 48 h of exposure to 100 and 200 μg/mL of the two TiO₂/RGO nanocomposites samples (A and B) and commercially available TiO₂ NPs (P25). F-actin (green) staining was done by phalloidin-fluorescein isothiocyanate (FITC). Scale bar: 100 μm.