Flow cytometry analysis. Flow cytometry analysis of C6 glioma cells that were treated with the acetylated APTS-coated Fe3O4 NPs at concentrations of (a) 50 μg/mL and (b) 100 μg/mL for 4 h at 37°C (n = 4). The data of the untreated negative control cells is shown in (c). Red, G1 phase; blue, S phase; green, G2 phase.
Li et al. Nanoscale Research Letters 2014 9:304 doi:10.1186/1556-276X-9-304