Table 1 Summary of most recent nonenzymatic CuO-based glucose sensors with their sensing characteristics as provided in the relevant references.
Electrocatalyst | Linear range (mM) | Detection Limit (mM) | Sensitivity (μA mM−1 cm−2) | pH | Ref. |
|---|---|---|---|---|---|
CuO nanosheets | 0.5–10 | 1 × 10−4 | 520 | 13 | |
CuO nanospheres | 0–2.56 | 1 × 10−3 | 405 | 13 | |
CuO nanoflowers | 0–5 | 1.71 × 10−3 | 2657 | 13 | |
Carnation-like CuO Hierarchical Nanostructures | 0–5.5 | 98 × 10−6 | 3150 | 13.2 | |
Flower-like CuO hierarchical nanostructures | 4.5 × 10−2–1.3 × 10−1 | 6.87 × 10−3 | 1710 | 13 | |
CuO nanorods | 0–5 | 220 × 10−6 | 1834 | 14 | |
Sandwich-structured CuO | 0–3.2 | 1 × 10−3 | 5343 | 13 | |
Cu/Cu2O/CuO ternary composite hollow spheres | 0–0.1 | 0.39 × 10−3 | 8726 | 13 | |
CeO2@CuO core shell nanostructure | 1–8.9 | 0.019 × 10−3 | 3319 | 13 | |
Nanocomposites of CuO and single-wall carbon nanotubes | 5 × 10−5–1.8 | 50 × 10−6 | 1610 | 13 | |
CuO nanoparticles | 0.21 × 10−3–12 | 0.21 × 10−3 | 700 | 13 | |
Pt/CuO/Pt metal-oxide-metal | 2.2–10 | 1.42 | 2921 | 7 | This work |
