[Retracted] Loading Gentamicin and Zn²⁺ on TiO₂ Nanotubes to Improve Anticoagulation, Endothelial Cell Growth, and Antibacterial Activities

Table 1

The surface element concentration of the different samples measured by XPS.

Sample	Atomic concentration (at.%)
	Ti	O	C	N	Zn
Ti	61.12	29.86	9.02	0	0
TNT-Dopa	9.28	14.30	71.83	4.59	0
TNT-PAA	9.97	30.42	56.41	3.20	—
TNT-PAA/GS	3.27	31.77	56.20	8.76	—
TNT-PAA/GS-Zn	1.86	28.78	59.73	6.26	3.37