Figure 2

SEM and TEM images of synthesized MENs. The morphology and shape of (a) MFO, (b) MFO-BTO, (c) MFO-BTO plasma-treated, and (d) MFO-BTO-DOX. TEM images of MFO-BTO with (e) 50 nm and (f) 5 nm scale bars.

SEM and TEM images of synthesized MENs. The morphology and shape of (a) MFO, (b) MFO-BTO, (c) MFO-BTO plasma-treated, and (d) MFO-BTO-DOX. TEM images of MFO-BTO with (e) 50 nm and (f) 5 nm scale bars.