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Confocal microscopy images of peripheral blood mononuclear cells (PBMCs) after 24 h and 48 h of incubation with fullerenol (37 °C, 5% CO2 atmosphere, 100% relative humidity). To analyze nanoparticle internalization, the following excitation and emission wavelengths were used: 405 nm for excitation and the range of 420–530 nm for emission. A, Control (without fullerenol); B, 75 mg/L; C, 150 mg/L. Bar = 10 μm.
