Table 3 Comparisons of modified gold electrode and the cortisol detection results reported in the literature and in the present study
From: Salivary Electrochemical Cortisol Biosensor Based on Tin Disulfide Nanoflakes
Substrate | Detection limit (ng/mL) | Sensitivity | Sample | Technique | Reference |
---|---|---|---|---|---|
Au IDmEs | 0.00036 | 3.2 kΩ (pg mL−1)−1 | Saliva/ISF | EIS | [64] |
Au IDmEs | 0.00036 | 7.9 kΩ (pg mL−1)−1 | Saliva | EIS | [65] |
Au IDmEs | 0.00036 | 6.4 kΩ (pg mL−1)−1 | ISF | EIS | [12] |
PANI protected Au Nanoparticles/Au IDmEs | 0.00036 | 4.5 μA (g mL−1)−1 | Cortisol in PBS solution | CV, DPV | [34] |
Au nanoparticle/Au IDmEs | 0.016 | 1.6 μA (pg mL−1)−1 | Blood | Square wave voltammetry | [66] |
Reduced graphene (rGo)/Au IDA | 1.0 | _ | Saliva | CV | [67] |
Core-shell Ag@AgO-PANI/Au IDmEs | 0.00064 | 183 μA (g mL−1)−1 | Cortisol in PBS solution | CV | [68] |
Au IDmEs | 0.01 | 6 μA (pg mL−1)−1 | Saliva | CV | [6] |
BSA/anti-C ab /SnS 2 /GCE | 0.036 | 0.0103 mAM −1 cm −2 | Saliva | DPV | Current study |