Intensities of some Raman bands of IL-6 on rGO/Si and Si supports.
| Concentration of IL-6 | I 760 | I 1049 | I 1403 | I 1465 | I 2943 |
|---|---|---|---|---|---|
| 1 μg mL −1 | |||||
| Si | 261.34 | 98.88 | 115.37 | 195.27 | 647.74 |
| rGO | 299.48 | 272.06 | 137.23 | 289.64 | 1159.36 |
| Band intensity ratio (rGO/Si) | 1.14 | 2.75 | 1.18 | 1.48 | 1.79 |
| Average band intensity ratio 1.67 ± 0.66 | |||||
| 1 ng mL −1 | |||||
| Si | 80.53 | 66.76 | 22.83 | 63.69 | 287.63 |
| rGO | 369.85 | 292.59 | 103.91 | 404.95 | 1258.67 |
| Band intensity ratio (rGO/Si) | 4.59 | 4.38 | 4.55 | 6.35 | 4.38 |
| Average band intensity ratio 4.85 ± 0.84 | |||||
| 1 pg mL −1 | |||||
| Si | 7.21 | 4.62 | 1.15 | 5.25 | 12.70 |
| rGO | 181.35 | 158.65 | 46.47 | 189.38 | 683.09 |
| Band intensity ratio (rGO/Si) | 25.15 | 34.33 | 40.41 | 36.07 | 53.79 |
| Average band intensity ratio 37.95 ± 10.46 | |||||