Figure 1.

Characterisation of silver nanoparticles. (A) UV-Vis absorbance (arbitrary units) spectrum showing narrow absorption peak at 433 nm. (B) TEM image showing heterogeneous nanoparticles 100 days post-synthesis (scale bar 100 nm), with inset particle diameter distribution. (C) AFM topography image in liquid showing heterogeneous nanoparticles 100 days post-synthesis (scale bar 700 nm), with inset particle height distribution.