Synthesis and Antibacterial Activity of Antibiotic-Functionalized Graphite Nanofibers

Table 2

XPS quantification of RuO₄-oxidized and antibiotic-labeled GCNFs.

Sample		Binding energy (eV)	%atom concentration
RuO4-oxidized GCNFs	C1s	285.0	91.2
	N1s	400.0	0.0
	O1s	532.5	8.8
	S2p	164.9	0.0
Amikacin-labeled GCNFs	C1s	285.0	89.8
	N1s	400.0	1.4
	O1s	532.5	8.0
	S2p	164.7	0.7
Ciprofloxacin-labeled GCNFs	C1s	285.0	93.9
	N1s	400.0	0.7
	O1s	533.6	5.3
	S2p	164.2	0.1
Tobramycin-labeled GCNFs	C1s	284.8	91.4
	N1s	399.6	0.8
	O1s	533.4	6.9
	S2p	164.2	0.9