Research Article

An Efficient T1 Contrast Agent for Labeling and Tracking Human Embryonic Stem Cells on MRI

Figure 6

Differentiation capacity of MnEtP-labeled hESCs. Light microscopy of embryoid bodies 5 days postlabeling: (a) unlabeled control cells; (b) 10 μM, 24 h MnEtP-labeled cells (4x magnification).