Biomedical Engineering Reference
In-Depth Information
C
284.8
/ Σorg
1.0
0.8
0.6
0.4
0.2
0.0
0.0
0.2
0.4
0.6
0.8
1.0
at θ = 0°
N
tot
/ Σorg
C
287.8
/ Σorg
0.12
0.12
0.08
0.08
0.04
0.04
0.00
0.00
0.00
0.04
0.08
0.12
0.00
0.04
0.08
0.12
C
286.3
/ Σorg
Si
org
/ Σorg
0.20
0.06
0.15
0.04
0.10
0.02
0.05
0.00
0.00
0.00
0.05
0.10
0.15
0.20
0.00
0.02
0.04
0.06
at θ = 0°
at θ = 0°
Fig. 4. Plots of molar concentrations ratioed to the sum of organic elements (Σorg) measured
by XPS at θ = 60°
vs
θ = 0° on native (open symbols) or silanized stainless steel (closed
symbols), as such (
¡
,
) or further treated with coupling agent BS (
S
,
U
), glucose oxidase
(
z
,
{
) or coupling agent followed by glucose oxidase (
,
). The dashed lines represent a
y/x
ratio of 1:1.
