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. 2014 Feb 1;9(3):285–292. doi: 10.4103/1673-5374.128225

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Copyright: © Neural Regeneration Research

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Optical micrographs of dorsal root ganglia (DRG) incubated with different MWCNTs-NGF samples (× 100).

The MWCNTs-COOH-NGF accumulate near the DRG and a small number of short and thick nerve fibers are seen growing (arrows). In contrast, there is no CNTs accumulation near the DRG and a large number of long and thin nerve fibers are found growing from the ganglion of MWCNTs- EDA-NGF samples (arrows). MWCNTs: Multi-walled carbon nanotubes; EDA: ethylenediamine; NGF: nerve growth factor. h: hours.