Fig. 4.

Percent survival of HCECs after incubating with various concentrations of unmodified dendrimers G3 and G5 (a), G3 EG₇-modified dendrimers (b), G3 EG₁₁-modified dendrimers (c), G5 EG₇-modified dendrimers (d), and G5 EG₁₁-modified dendrimers for 24 hours. The benzalkonium chloride (bac)-treated HCECs were used as the positive control. Each plot was obtained from a representative experiment, where the data point is the mean of four replicates ± standard deviation. The values were compared to the untreated control at *P < 0.05 using the Tukey test.