“…Depending on the applied potential, two approaches can be distinguished: (i) Deposition of the enzyme on the substrate using low applied currents or voltages Matsumoto et al, 2002;Shin and Kim, 1996a,b;Bharathi and Nogami, 2001). This category also includes co-deposition of the enzyme in the presence of other proteins such as collagen and bovine serum albumin (Wang and Vieth, 1973;Johnson et al, 1994), co-deposition of enzyme with platinum salts to form platinum black surface (Johnson, 1991a;Wang et al, 2000;Ikariyama et al, 1987;Gajovic et al, 2000), codeposition of enzyme with polymeric monomers such as pyrrole or phenol (Fortier et al, 1990;Bartlett and Copper, 1993;Curulli and Palleschi, 1997;Vidal et al, 1999;Cosnier, 2000). (ii) Deposition of the enzyme by electrophoresis using high applied currents or voltages (Johnson, 1991a,b;Sakagami et al, 1981).…”