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. 2020 Jan 20;10(6):2453–2462. doi: 10.7150/thno.42981

Figure 4.

Figure 4

MRI images of 4T1 tumor-bearing mice after i.v. injection of MnCl2 (A), MnS@BSA (B) at various time points. (C) The TNR contrast ratio after i.v. injection of MnS@BSA or MnCl2. (D) Biodistribution of manganese element after injection of MnS@BSA at 24 h post-injection. (E) The content of manganese element in mice excrements after injection of MnS@BSA over time.