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. 2014 Dec 5;12:50. doi: 10.1186/s12951-014-0050-8

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© Le et al.; licensee BioMed Central. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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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TEM images of root sections of non-transgenic cotton (A-B) and Bt-transgenic cotton (C-D) after 21 days treated with SiO2 NPs. A and C were TEM images of nontransgenic and Bt-transgenic cotton roots without SiO2 NPs treatments. B and D were TEM images of non-transgenic and Bt-transgenic cotton roots treated with 2000 mg.L⁻¹ SiO₂ NPs.