Table 1. Comparison of the Cu@RGO Electrode with Other Previously Reported Nonenzymatic Glucose Sensors Based on Cu Nanomaterials.
| electrode materials | sensitivity (μA mM–1 cm–2) | linear range (mM) | LOD (μM) | references |
|---|---|---|---|---|
| CuNP/RGO | 447.65 | 0.01–1.2 | 3.4 | (46) |
| CuNP/graphene glassy carbon electrodes (GCE) | 607 | 0.005–1.4 | 0.2 | (47) |
| CuO nanorods/graphite | 371.43 | 0.004–8 | 4.0 | (48) |
| CuNP/GO/single-walled carbon nanotubes | 930.07 | 0.001–4.538 | 0.34 | (44) |
| Cu foam | 3581.1 | 0.18–3.47 | 12.3 | (49) |
| Cu | 1096 | up to 7.5 | 1 | (50) |
| Cu/graphene | 4.5 | 0.5 | (51) | |
| Cu-CNTs | 17.76 | 0.0007–3.5 | 0.21 | (52) |
| CuNPS/multi-walled carbon nanotubes (MWCNTs) | 50.47 | 0.01–0.3 | 0.5 | (53) |
| Cu nanowires-MWCNTs | 1995 | up to 3 | 5 | (54) |
| Cu-N-G | 48.13 | 0.004–4.5 | 1.3 | (45) |
| CuNiNPs-3D-KSCs | 19.16 | 0.007–23.67 | 2.3 | (6) |
| CuO nanowire | 490 | 0.0004–2 | 0.049 | (55) |
| Ag/CuO | 1347 | 0.0005–0.5 | 0.057 | (56) |
| Cu@RGO | 150 | 0.001–2 | 0.34 | this work |