“…In particular, Ag nanoparticles are some of the well-developed materials that have been used for applications in electrochemical detection because they are inexpensive relative to other noble metal materials and they possess good chemical and physical properties [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. For example, well-dispersed Ag nanoparticles have been successfully utilized in the electrochemical detection hydrogen peroxide [ 5 , 6 , 10 , 11 , 14 ], glucose [ 12 ], norepinephrine [ 13 ] and heavy metal ions including Hg(II) [ 7 ], Cr(IV) [ 8 , 9 ]. Unfortunately, in most cases, the Ag nanoparticles generated by the most methods were often in powder type, which were further coated on the glass carbon electrode (GCE) for electrochemical detection [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ].…”