Amperometric immunosensor for the determination of IgA deficiency in human serum samples

► Electrochemical amperometric immunosensor quantitative determination of human IgA. ► Dithiol SAM-based platform. Low limits of detection with low levels of nonspecific adsorption, rapid assay time (30 min). ► Optimal performance in complex matrices such as foetal bovine serum or directly human blood serum. ► Correlation with classical ELISA methods.