Table 1. Experimental datas.
| Transmittance angle θ (°) |
 (°) |
S (°) | RSD (%) |
 ± S (°) |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Y1 | Y2 | Y3 | Y4 | Y5 | Y6 | |||||
| Probe + antigen (0.5 × 10−6 mg/ml) | 1.64 | 1.44 | 1.50 | 1.56 | 1.58 | 1.40 | 1.52 | 0.09 | 6.0 | 1.52 ± 0.09 |
| Probe + antigen (1.0 × 10−6 mg/ml) | 2.62 | 2.46 | 2.38 | 2.56 | 2.32 | 2.42 | 2.46 | 0.11 | 4.5 | 2.46 ± 0.11 |
| Probe + antigen (2.0 × 10−6 mg/ml) | 4.20 | 4.64 | 4.58 | 4.36 | 4.88 | 4.58 | 4.54 | 0.24 | 5.3 | 4.54 ± 0.24 |
| Probe + antigen (1.0 × 10−5 mg/ml) | 13.26 | 13.34 | 12.38 | 13.32 | 12.30 | 12.68 | 12.88 | 0.49 | 3.8 | 12.88 ± 0.49 |
| Probe + antigen (2.0 × 10−5 mg/ml) | 27.28 | 25.10 | 26.98 | 28.24 | 25.34 | 25.22 | 26.36 | 1.32 | 5.0 | 26.36 ± 1.32 |
The average value of the experiment as a result. Sensitivity and reproducibility of the PSM biosensor after exposure to different concentration of hydatid antigen in Fig. 7. Y1, Y2, Y3, Y4, Y5, Y6 are transmittance angle θ corresponding to these six samples, 
is average value of transmittance angle θ, S is standard deviations, and RSD is relative standard deviation, where 
, 
.