DISSERTATION

_____________________________________________________________ Results and Discussion
for 30 s, while the last desorption cycle was performed for only 5 s, resulting in the same effect,
namely the full regeneration of the surface. Shorter desorption times were not investigated.
The potential pulse-assisted desorption allows regeneration of Au surfaces within only 5 s while
preserving the surface quality for further modification, which makes this method suitable for
the application in DNA microarrays.
Figure 3.43. CV characterization during the removal of a MCU SAM from the electrode
surface. Data was taken from Figure 3.42 and plotted to compare each cycle of a) SAM
formation by the potential-pulse assisted immobilization method; b) surface
characterization before and after regeneration by potential-pulse desorption.
3.3 Importance of controlling the surface 84