Moon SU, Kim J, Bokara KK, et al. Int J Nanomedicine. 2012;7:2751–2765.
The authors have advised on page 2760 is incorrect. Due to an error at the time of figure assembly the images for were duplicated. The authors did not pick this error up during the proof-reading stage of the publication. The correct is shown below.
The authors apologize for this error and advise that this does not affect the results of the paper.