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Figure 4 | EPJ Techniques and Instrumentation

Figure 4

From: Characterization of a gold coated cantilever surface for biosensing applications

Figure 4

XPS measurements of the electrochemical removal of an oligonucleotide functionalization layer on the gold sample. X-Ray Photoelectron Spectroscopy (XPS) data are shown for the Au4f, N1s and P2p peaks for oligonucleotide functionalized (A) and electrochemical cleaned (B) gold samples. A clear increase in the gold peak as well as a clear removal of the phosphate peak of the cleaned sample can be seen.

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