Table 2.
Comparison of analytical properties of the current NZ-based CHOL bionanosensors with known analogs.
Biosensors | Sensitivity, A·M−1·m−2 | LOD µM |
Linear Range, mM | KMapp, mM | Potential, V |
Redox Agent | Reference |
---|---|---|---|---|---|---|---|
GlOx/nCeAu/GCE | 33 ± 2 | 4 | 0.05 | 1.1 | −0.25 | nCeAu NZs | This work |
GlOx/nAuHCF/GCE | 63 ± 4 | 4 | 0.18 | 0.2 | −0.25 | nAuHCF NZs | This work |
ChOx/nCuFe/GCE | 321 ± 12 | 2.8 | 0.003–0.1 | 0.85 | −0.25 | nCuFe NZs | This work |
GlOx/nPt/GCE | 305 ± 14 | 1.7 | 0.02–0.4 | 2.46 | −0.25 | nPt NZs | This work |
ChOx/nCuFe/nPt/GCE | 3960 ± 20 | 0.2 | 0.002–0.05 | 0.41 | −0.25 | nCuFe/nPt NZs | This work |
Ti/NPAu/ChOx–HRP–ChE | 29.33 | 0.01 | 0.97–7.80 | 0.64 | - | HRP | [60] |
Au-f-MWCNT-PPy-ChOx/GCE | 101.2 | - | 2–8 | 1.66 | 0.6 | K4[Fe(CN)6] | [37] |
ChOx/Graphene/PVP/PANI | 347.7 | - | 0.05–0.10 | - | 0.6 | PANI | [45] |
SPE/PANi/CNC/IL/GLU/ChOx | 351.9 | - | 1–12 | - | 0.6 | PANI | [46] |
ChOx/CS/ZnO@ZnS/GCE | 526.7 | 20 | 0.4–3 | - | 0.3 | K4[Fe(CN)6] | [19] |
ChOx/TH/Cu2O/GCE | 702 | 0.0018 | 0.01–1 | 0.025 | - | Thionine | [26] |
ChOx/Fe3O4@PAMAM | 739 | - | 0.1–1.5 | - | 0.6 | K4[Fe(CN)6] | [64] |
ChOx/Fe3O4@APTES | 1019 | - | 0.1–1 | - | 0.6 | K4[Fe(CN)6] | [64] |
ChOx/AuNP/carbon IDE | 1203 | 24.6 | 1–10 | - | 0.6 | K4[Fe(CN)6] | [62] |
Pt-NC/enzyme/Nafion | 1320 | 2 | 0.02–0.48 | - | 0.6 | Pt-NC | [63] |
ChOx/MoS2-AuNP/GCE | 44,600 (4460 μA mM−1 cm−2) |
0.026 | 0.05–0.048 | 0.325 | - | MoS2-AuNPs | [56] |
SPE-PEDOT-ChOx-nafion | 1.34 μA·mM−1 | - | 0.05–0.8 | 0.24 | –0.51 | PEDOT | [51] |
ChOx/KMWNTs/GCE | 2 μA·mM−1 | - | 0.005–0.016 | - | 0.6 | KMWNTs | [65] |
ChOx/CeO2-NR | 858 | 680 | 1–6.5 | 0.68 | 1.25 | CeO2 | [48] |
Ag/ChOx/ChE/Au NPs/SPE | 336 | 0.009 | 0.01–15 | - | - | Ag | [66,67] |
ChOx—cholesterol oxidase; HRP—horseradish peroxidase; ChE—cholesterol esterase; TH–thionine; APTES—3-aminopropyltriethoxysilane; PAMAM—polyamidoamine dendrimer; PANi—polyaniline; CNC—Crystalline nanocellulose; NPAu—gold nanoparticle; Pt NC—nano-cluster; GLU—glutaraldehyde; NR—nanorods; KMWNTs—potassium-doped multi-walled carbon nanotubes; PVP—polyvinylpyrrolidone; PPy—polypyrrole; PEDOT—poly-3,4-ethylenedioxythiophene; GCE—glassy carbon electrode.