Numerous AgNP/polymer PNCs have been reported in the literature.
Sanchez-Valdes et al., for example, coated a five layer (PE/tie/PA-6/tie/PE; PA-6 = polyamide six and tie = maleic anhydride grafted polyethylene) plastic film with an AgNP/polyethylene nanocomposite layer and found antimicrobial activity against the fungus A. niger, a common food contaminant .
Moreover, they found (see Fig. 8, top) that the activity was dependant on the coating method: methods that gave rise to a rougher surface (and hence more surface area for silver-ion release) had higher activity than those that resulted in a smoother surface.