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Proliferation profiles (arrows indicate addition of nanoparticles) (a), live/dead images (scale bar = 100 μm) (b) and lactate dehydrogenase (LDH) release (c) of A549 and BEAS-2B cells incubated with 10 µg/mL SPIONs or SPION@mSiO2 for 3 days.
