FIG. 5.

Electrochemical characterization of the reaction of pAPP and ALP-labelled anti-mouse IgG (ALP-antibody). (a) Cyclic voltammetry on solutions of pAPP plus ALP-antibody (“pAPP + ALP”) and pAPP along (“pAPP”). (b) Results of hydrodynamic linear sweeping on the solutions of “pAPP + ALP” and “ALP.” (c) The signal-to-background current ratio extracted from the hydrodynamic sweeping results. (d) Chronoamperometry measurement results on the solution of “pAPP” with ALP-antibody added subsequently. The CA potential of 0.12 V was used.