Liu M, Luo G, Wang Y, et al. Int J Nanomedicine. 2017;12:6827-6840.
The authors have advised due to an error that occurred inadvertently at the time of figure assembly, Figure 7B on page 6834 is incorrect. The authors have also advised the magnification in the note section is incorrect.
The correct Figure 7 and caption are as follows.
The authors apologize for these errors.