Figure 2
Characterization of the mechanical stability by using the cross-cut tape adhesion test and IRRAS for the modified surfaces. (a) Images from the digital camera of bare PPX coating modified on a gold substrate before and after the cross-cut tape adhesion test. The bare coating of benzoyl-PPX was used for the demonstration. (b) Images from the digital camera of the molecule immobilization modification on a silicon substrate before and after the cross-cut tape adhesion test. The molecule of BMP-2 was used for the demonstration. IRRAS spectra were also recorded before and after the cross-cut tape adhesion test for the modified surface on (e) bare benzoyl-PPX, (f) bare maleimide-PPX, (g) CHX-immobilized surface, (h) BMP-2-immobilized surface, and (i) RGDACC-immobilized surface.
