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Cell viability of A549 cells was measured by MTT assay after 24 hours TNP exposure.
Notes: Cell viability was significantly decreased in a dose-dependent manner after TNP treatment. *P<0.05, compared with control group, n=5.
Abbreviations: MTT, 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide; TNP, titanium dioxide nanoparticle.
