R2mapping andR2values of the C6 glioma cell phantoms. (a)R2 mapping of gel phantoms containing C6 glioma cells that were treated with PBS buffer (1) or with acetylated APTS-coated Fe3O4 NPs at concentrations of 10 μg/mL (2), 25 μg/mL (3), and 50 μg/mL (4). (b)R2 values of the C6 glioma cells with the above treatments.
Li et al. Nanoscale Research Letters 2014 9:304 doi:10.1186/1556-276X-9-304