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. 2016 Mar 25;14:23. doi: 10.1186/s12951-016-0175-z

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© Chen et al. 2016

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. 4 — The micro-scale of root segmentation localized at yttria NPs aggregated regions. a The selected yellow region in 17.2 keV visualization. b The top transverse slice of yellow frame region. c Magnified view of yellow frame. The vascular tissue (VT) and ground tissue (GT) are shown in (b). The red regions in (c) show the distribution of yttria NPs. The yellow frame size is 0.58 x 0.58 x 0.13 mm