Table 1: X-ray photoelectron spectroscopy (XPS) spectra for both NWRBM, immediately treated plasma (Plasma), and Plasma 30 days surfaces (mean ± SD).

Chemical element (%)NWRBMPlasmaPlasma 30 days

Al2p1.04 (0.2)3.94 (1.2)2.8 (1.5)
C1s32.91 (2.1)15.25 (1.6)24.6 (3.3)
Ca2p9.84 (1.1)12.2 (2.1)10.4 (2.4)
o1s41.27 (3.2)50.3 (3.7)46.8 (5.2)
P2p8.28 (0.8)9.3 (1.6)8.4 (2.7)
Ti2p3.01 (0.4)5.2 (1.4)4.6 (2.3)
V2p30.16 (0.2)0.9 (0.5)0.7 (0.5)