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. 2018 Apr 2;22:10. doi: 10.1186/s40824-018-0120-3

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 6 — The effects of 3D graphene foams (GFs) on the adhesion and osteogenic differentiation of human mesenchymal stem cells (hMSCs). (a - c) The SEM images of hMSCs cultured on 3D GFs for 4 days. The yellow arrows represent formed protrusions up to 100 mm in length that extended from small cell bodies (black arrows). (d) Immunofluorescence images of hMSCs cultured on TCPS and 3D GFs for 7 days. (e) The average cell number was quantified from Fig. 6d. (f) Immunofluorescence images stained with osteogenic markers, Osteocalcin and Osteopontin, for hMSCs cultured on TCPS and GF for 7 days. Scale bar = 50 μm. Copyright © 2013, Royal Society of Chemistry