Correction to: Drug Delivery and Translational Research (2018) 8:1214–1225 https://doi.org/10.1007/s13346-018-0567-8

In the original article there is an error in Fig. 5a (Masson’s trichrome part including all groups). The corrected Fig. 5a (Masson’s trichrome part including all groups) is below. The new images of all groups of Masson’s trichrome staining were obtained using a microscope (Nikon, Japan). This information on Masson’s trichrome experiment had inadvertently been overlooked in the original article. Masson’s trichrome images of cell injection and magnet-independent groups had a section in common.

Fig. 5
figure 1

a Masson’s trichrome part from all groups (control, HF, cell injection, magnet-independent, and magnet-dependent; magnification × 400)

The corrections do not alter any findings and conclusions of this study.