From this study we
conclude that pyridyl group is crucial for stabilization of the
AgNPs, while dtc plays insignificant role in this regard. TEM
images of PVP-stabilized AgNPs [Ag/[PVP], ratio; 03]
exhibited spherical particles with average size of 15 ± 4 nm
(details of preparation are given in Supporting Information,
Figures S23 and S24).