Simple Label-Free Electrochemical Immunosensor in a Microchamber for Detecting Newcastle Disease Virus

Figure 4

CV characterization of modified electrodes measured in the microchamber. (a) PrA/GA immunosensor: CV curve of (A) Au electrode, (B) PrA-Au electrode, (C) GA-PrA-Au electrode, (D) IgY-GA-PrA-Au electrode, and (E) BSA-IgY-GA-PrA-Au electrode and (F) after immunoreaction of 10⁴ EID₅₀/mL NDV solution with PrA/GA immunosensor. (b) SAM/NHS immunosensor: (A) Au electrode, (B) TGA-Au electrode, (C) NHS-TGA-Au electrode, (D) IgY-NHS-TGA-Au electrode, and (E) BSA-IgY-NHS-TGA-Au electrode and (F) after immunoreaction of 10⁴ EID₅₀/mL NDV solution with SAM/NHS immunosensor.

(a)

(b)