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Biological evaluation of Fe3O4@STR and Fe3O4@NEO nanoparticles and PLGA-CS-Fe3O4@STR and PLGA-CS-Fe3O4@NEO spheres after 24 h of interaction with MRC-5 human cells by MTT test of cellular viability, NO level, and LDH release. The results were calculated as mean ± standard deviations of three different replicates and expressed relative to control cells (* p > 0.05 compared to control).
