Table 1 Determination of A549 derived exosomes spiked in PD-L1+ exosome-negative serum samples by using the developed electrochemical aptasensor
Sample no | Added (particles/mL) | DPV (μA) | Found (particles/mL) | Recovery (%) | RSD (%) |
|---|---|---|---|---|---|
1 | 1000 | − 46.6 | 989 | 98.90 | 2.09 |
2 | 100000 | − 104.1 | 100990 | 100.99 | 4.81 |
3 | 10000000 | − 160.9 | 9660608 | 96.61 | 2.96 |