Table 4.
LOD comparison with prominent cortisol sensors.
| Ref. | Modalities | LOD |
|---|---|---|
| Chen et al. [13] | Denaturalized bovine serum albumin (dBSA)-SPR chip | 1 ng/mL |
| Vasudev et al. [39] | LTCC-based microfluidic system | 10 pg/mL |
| Kämäräinen et al. [40] | Electrochemical immunosensor | 0.6 ng/mL |
| Dalirirada and Steckl [41] | Aptamer functionalized Au nanoparticles | 1 ng/mL |
| Usha et al. [20] | LMR and ZnO/PPY nanocomposite of MIP | 25.9 fg/mL |
| This work | SiO2 Grating based fiber SPR sensor | - |
| (a) angular mode (b) intensity mode |
9.9 pg/mL 22.6 fg/mL |
|
| SiC Grating based fiber SPR sensor | - | |
| (a) angular mode (b) intensity mode |
9.8 pg/mL 68.17 fg/mL |
|