Table 3 Experimental data for varying molar weight of fGO.
E. coli sample 1 mL, distilled water 2 mL | Step value obtained from ADC of Arduino microcontroller | Voltage acquired in multimeter (µV) | |
|---|---|---|---|
Amine functionalized GO-based nanosensor solution (mL) | Optical density | ||
0 | 0.06 | 269 | − 0.16 |
0.1 | 0.07 | 265 | − 0.15 |
0.2 | 0.19 | 268 | − 0.15 |
0.3 | 0.28 | 262 | − 0.14 |
0.4 | 0.47 | 260 | − 0.13 |
0.5 | 0.64 | 262 | − 0.13 |
0.6 | 0.76 | 257 | − 0.11 |
0.7 | 1.06 | 256 | − 0.09 |
0.8 | 1.34 | 255 | − 0.08 |
0.9 | 1.76 | 252 | − 0.07 |
1 | > 2 | 251 | − 0.08 |
