The live/dead ratio of G⁻ and G⁺ bacteria on TiO₂ nanotubes decorated with differently functionalized Ag-NPs after 24 hour incubation.

	Live/dead ratio
	E. coli	P. aeruginosa	S. aureus
TNTs	0.652 ± 0.012	1.161 ± 0.05	1.168 ± 0.003
PVP	0.381 ± 0.008	0.099 ± 0.011	0.926 ± 0.012
BPEI	0.151 ± 0.004	0.093 ± 0.001	1.021 ± 0.020
Citrate	0.033 ± 0.002	0.101 ± 0.013	2.457 ± 0.035
PEG	0.026 ± 0.001	0.009 ± 0.0002	0.447 ± 0.011
Lipoic acid	0.010 ± 0.001	0.019 ± 0.001	0.621 ± 0.008