Table 4.

Assessment of oxidative properties of studied DEPs with H₂DCFDA

	A549
	Concentration (μg/cm3)	Rate constant K (1/min)	Standard error	Doubling time (ln2/K) (min)	95% confidence intervals	Degrees of freedom
B7-DEPs	100	0.04138	0.0002685	16.75	16.54 to 16.97	271
	50	0.04479*	0.0004004	15.48	15.21 to 15.75	271
	25	0.04650*	0.0006699	14.91	14.50 to 15.34	271
	0	0.04100	0.0005522	16.91	16.47 to 17.36	273
B20-DEPs	100	0.04557*	0.0004950	15.21	14.89 to 15.54	271
	50	0.03980*	0.0004198	17.41	17.06 to 17.78	271
	25	0.03750*	0.0004537	18.48	18.05 to 18.93	226
	0	0.03445	0.0005176	18.15	17.51 to 18.83	271
SHB-DEPs	100	0.03658	0.0007146	18.95	18.25 to 19.70	271
	50	0.03221*	0.001052	21.52	20.23 to 22.99	271
	25	0.03121*	0.0009429	22.21	20.97 to 23.61	271
	0	0.03820	0.0007101	18.15	17.51 to 18.83	271

A549 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