Fig. 7From: Rapidly liver-clearable rare-earth core–shell nanoprobe for dual-modal breast cancer imaging in the second near-infrared windowIn vivo MRI of tumor-bearing mice. a T1-weighted MRI of breast tumor after injection with Nd-RENPs for 0, 5, 15, 30, 60, 90, 120, and 240 min. The tumor area was marked with arrow. b T1 relaxivity plot of the aqueous suspension of Nd-RENPs. c Mean intensity of MRI signals of tumors, n = 3Back to article page