Table 1. Characteristics of Electrochemical BNP Sensing Platformsa.
| method | interface | LOD (pg mL–1) | linear range (ng mL–1) | ref |
|---|---|---|---|---|
| LSV | immune reaction in solution using AChE-labeled anti-BNP antibodies, detection on silver electrodes by measuring unreacted conjugates from enzymatic reaction | 20 000 | 20–100 | (17) |
| LSV | immune reaction in solution with BNP-modified Au NPS detection on a silver electrode modified with thiocholine | 20 | 0.02–0.2 | (18) |
| SPR | gold modified with cystamine and BNP and anti-BNP-AChE conjugate | 5 | 0.005–100 | (16) |
| CV | SPE modified with Au NPs/BNO antibody and HRP-antibody (sandwich assay) | 4 | 0.014–15 | (9) |
| DPV | SPE-aptamer/PEG | 0.9 | 0.0009–1000 | this work |
| EIS | silicon nanowells modified with anti-BNP | 0.001 | 0.000001−10 000 (DR) | (20) |
a
Au NPs, gold nanoparticles; AChE, acetylcholine esterase-labeled antibody; LSV, linear sweep voltammetry; DR, dynamic range.