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The population doubling time (PDT) in an hour and the growth curve were determined until day 6. The number of cells treated with 180 µg/mL of iron oxide transfected with 1 µL/mL of lipofectamine (Day 1: p = 0.92, day 2: p = 0.97, day 3: ** p = 0.0001, day 4: p = 0.95, day 5: p = 0.28, day 6: p = 0.155), revealing the PDT of 36 h and 33 h for non-labeled and iron oxide labeled cells (180 µg/mL) transfected with 1 µL/mL lipofectamine, respectively.
