Figure 5.

T2-weighted MR imaging (A) and the corresponding T2 relaxation rates (1/T2) (B, C) of RAW267.4 cell incubated with SHU555A or the MNCs with average size of 63 nm at different concentrations for 1 h or at the concentration of 10 μg/mL for different periods of time. For relaxation time measurements, 1 × 105 labeled cells were suspended in gelatin (2%, 500 μL) in plastic vials homogenously.

Li et al. Nanoscale Research Letters 2012 7:204   doi:10.1186/1556-276X-7-204
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