Figure 2
From: Antibacterial activity of ultrathin platinum islands on flat gold against Escherichia coli
XPS binding energy spectra of (a) Pt4f for the Au substrate, (b) Au4f for the Au substrate, (c) Pt4f for the Pt/Au substrate, (d) Au4f for the Pt/Au substrate, and (e) Cu2p3 for the Pt/Au substrate.
