Table 3.

Assessment of oxidative properties of studied DEPs with H₂DCFDA

	BEAS-2B
	Concentration (μg/cm3)	Rate constant K (1/min)	Standard error	Doubling time (ln2/K) (min)	95% confidence intervals	Degrees of freedom
B7-DEPs	100	0.06242*	0.001123	11.10	10.73 to 11.51	135
	50	0.05974*	0.0009490	11.60	11.25 to 11.97	135
	25	0.05791*	0.0009175	11.97	11.61 to 12.35	135
	0	0.05478	0.0005984	12.65	12.39 to 12.93	270
B20-DEPs	100	0.06296*	0.001051	11.01	10.66 to 11.38	135
	50	0.06031*	0.001007	11.49	11.13 to 11.88	135
	25	0.05847*	0.0009707	11.86	11.48 to 12.25	135
	0	0.05478	0.0005984	12.65	12.39 to 12.93	270
SHB-DEPs	100	0.05618*	0.001021	12.34	11.91 to 12.79	270
	50	0.05286*	0.001017	13.11	12.64 to 13.63	270
	25	0.05111	0.0008011	13.56	13.16 to 13.99	270
	0	0.04859	0.001152	14.26	13.63 to 14.96	270

BEAS-2B cells were cultured with nanoparticles in three concentrations: 100, 50, and 25 μg/cm³ for 2 h. Fluorescence was read each minute for 45 min. Data points were fit to exponential growth equation (y = y ₀ ⋅ e ^K ⋅ x)

*Difference towards respective control