Figure 2: XPS analysis of GNCs and GNC–siRNA complex.
From: Gold nanoclusters-assisted delivery of NGF siRNA for effective treatment of pancreatic cancer
XPS spectra for the chemical element of gold (Au), sulfur (S), carbon (C), nitrogen (N), oxygen (O) and phosphor (P), respectively, on the surface of GNCs (a) and on the surface of GNC–siRNA complex (b).
