Sandwich-type conductometric immunoassay of alpha-fetoprotein in human serum using carbon nanoparticles as labels

▶ We design a conductrometric immunoassay of alpha-fetoprotein in human serum. ▶ Carbon nanoparticles as labels. ▶ Analysis of real samples and intralaboratory validation. ▶ We compare the analytical performance of the immunosensor with commercially available Electrochemiluminescent.