The results obtained from the circuit fitting for the construction of the immunosensor depicted in Fig. 2B.
Circuit element | GCE | GCE/MnO2NRs | GCE/AuNPs | GCE/MnO2NRs@AuNPs | GCE/MnO2NRs@AuNPs/antibody | GCE/MnO2NRs@AuNPs/antibody/BSA |
---|---|---|---|---|---|---|
R s (Ω) | 101.40 | 90.65 | 95.63 | 93.18 | 95.55 | 98.87 |
R ct (Ω) | 2225.8 | 65.14 | 34.65 | 20.45 | 87.19 | 94.76 |
CPE (nF) | 61.81 | 2.30 | 4.12 | 8.65 | 9.37 | 9.27 |