Research Article
Refractometric Sensing of Protein in Urine by the Photonic Crystal Fiber Biosensor in THz Regime
Table 3
Comparison with recent RI-dependent sensors for similar application in the PCF platform.
| | Ref. | Targeted analyte/s | Refractive index | Sensitivity (%) | Lc | (ps/THz/cm) | EML (cm−1) | A eff |
| | [6] | Sarin, soman, and tabun | 1.366–1.44 | 92.84–94.4 | 1.71 × 10−14 cm−1 | — | 0.0085–0.0094 | — | | [7] | Water, plasma, WBCs, hemoglobin, and RBCs | 1.33–1.4 | 79.39–80.93 | 10−10±1 (dB/cm) | 2.1 ± 2.02 | | ≈1 × 105 (μm2) | | [26] | Water, plasma, WBCs, hemoglobin, and RBCs | 1.33–1.4 | 89.14–93.50 | 10−13.5±0.5 (cm−1) | | — | 2.2 × 105 μm2 | | [27] | Bilirubin | — | 95 | 2.64 × 10−15 (dB/cm) | — | 0.0013 | — | | [28] | Plasma, WBCs, hemoglobin, and RBCs | 1.33–1.4 | 84.55–85.09 | 10−9±0.5 (cm−1) | — | — | 1.86 × 10−7 m2 | | [29] | Dioxin, toluene, hydrogen sulfide, nitrogen dioxide, and sodium cyanide | 1.36–1.65 | 89.6–91.5 | 10−16±1 (cm−1) | — | 0.019 ± 0.001 | (4-5) × 10−8 m2 | | [30] | Blood serum and blood plasma | 1.3561–1.3564 | 66.7–73.4 | 1.55 × 10−12±1 (cm−1) | 2.6 × 10−3 | 0.212–0.217 | (6.1–6.4) μm2 | | Proposed work | Albumin | 1.335–1.337 | 98.58–98.61 | 10 −16.5±0.5 (cm −1) | 0.30 ± 0.33 | ≈0.0173 | ≈5.06 × 10 −8 m 2 |
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Performances of proposed works are highlighted by bold values.
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