Contrast Media & Molecular Imaging / 2018 / Article / Fig 6

Research Article

Neural Induction Potential and MRI of ADSCs Labeled Cationic Superparamagnetic Iron Oxide Nanoparticle In Vitro

Figure 6

(a) The labeling longevity of PEG/PEI-SPIO
(b) The labeling longevity of PEG/PVP-SPIO
(c) The labeling longevity of PEG/PEI-modified SPIO (25 ug/ml): the T2 signal and the relaxation time of the same amount of cells were gradually increased along with the continuous passage; the T2 signals and relaxation times of the P7 ADSCs (20 d) in the labeling group and the nonlabeling group showed no significant difference
(d) The labeling longevity of PEG/PVP-modified SPIO (25 ug/ml): the T2 signal and the relaxation of the same amount of cells were gradually increased along with the continuous passage; the T2 signals and relaxation times of the P6 ADSCs (15 d) in the labeling group and the nonlabeling group showed no significant difference

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