“…In addition, the adsorption of protein molecules form the blood on the enzyme surface further reduces the utility of enzymatic sensors [ 13 , 14 ]. To overcome these problems, electrochemical non-enzymatic glucose sensors with characteristic features such as effective selectivity, high sensitivity, low detection limit, and better stability have been developed [ [15] , [16] , [17] ]. Nanomaterials composed of metals such as copper (Cu), iron (Fe), gold (Au), silver (Ag), manganese (Mn), nickel (Ni) and zinc (Zn) have been examined for their applicability in non-enzymatic glucose sensors.…”