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Figure 4 | BMC Cancer

Figure 4

From: Evaluation of superparamagnetic iron oxide-polymer composite microcapsules for magnetic resonance-guided high-intensity focused ultrasound cancer surgery

Figure 4

Cytotoxic effects of PLGA-coated Fe 3 O 4 microcapsules on MDA cells. Optical density (OD) was measured at 490 nm in MDA cells incubated with different concentrations of PLGA-coated Fe3O4 to assess cell viability. The higher the OD, the greater the cell viability. The OD of MDA cells incubated with PLGA-coated Fe3O4 microcapsules at concentrations of 0.5, 1.0, 2.0, 4.0 and 8.0 mg/ml were 0.156 ± 0.003, 0.160 ± 0.007, 0.154 ± 0.004 and 0.161 ± 0.007, 0.157 ± 0.005, respectively; the OD of the control group was 0.158 ± 0.005. Results showed no significant differences between the PLGA-coated Fe3O4 groups and the control group (P > 0.05; MDA cells in culture medium without agents were used as the control group.

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