Table 2.

Charge transfer resistances obtained by the fitting of EIS. PBS: phosphate-buffered saline.

Membrane	Solution	Rct (Ω)
ZnO	PBS	1.17 × 104
AZO	PBS	5.72 × 103
GO/ZnO	PBS	2.99 × 103
GO/AZO	PBS	1.83 × 103
Nafion-GOx/GO/ZnO	PBS (5 mM glucose)	3.53 × 103
Nafion-GOx/GO/AZO	PBS (5 mM glucose)	2.31 × 103