XPS C1s peak information for three types of C bonds and N1s peak information for three types of N bonds in M3D and M3D–PAA–CCN.

Bonds	C1s				Bonds	N1s
	M3D		M3D–PAA–CCN			M3D		M3D–PAA–CCN
	B.E.	%	B.E.	%		B.E.	%	B.E.	%
C–C	284.9	48.3	284.6	59.1	NH2	398.6	74.9	398.8	58.6
C–N	286.1	25.1	286.1	31.2	CONH2	400.2	24.5	400.3	33.2
N–C O	288.4	26.6	288.5	9.7	NH3+	401.6	0.6	401.5	8.2