“…Silver-doped glasses have been synthesized by a variety of methods, many of which are still in use after decades, like for example staining processes [101], but novel techniques -or improvements of known techniques-able to control the silver state within the glass matrix have been found without interruption even throughout the last decades [98,[102][103][104]. Among the first methods used to create nanostructured silver clusters within glasses are ion implantation [105][106][107] and sol-gel techniques [7,[108][109][110][111].…”