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A549 and Caco-2 cell oxygen consumption rate response to selected media and SBF-exposed nanoceria. Upper panel: A549 cell OCR response to selected media and 100 μg/cm2 SLF-exposed nanoceria. Lower panel: Caco-2 cell OCR response to selected media and 100 μg/cm2 FeSSIF-exposed nanoceria. (1 column. Color in print.)
