“…Initially, the DPV response was recorded for the BSA/anti-SAA/ Ser/P-g-C 3 N 4 /ITO bioelectrode against SAA protein (antigen) in analytical solution, and subsequently, a series of interferents including electrolytes and bio-analytes that are present in human blood serum were added to the analytical cell, i.e., glucose (Glu; 70 mg dL À1 ), uric acid (UA; 1 mg mL À1 ), urea (4 mg mL À1 ), lactic acid (LA; 0.5 mM), ascorbic acid (AA; 10 mg mL À1 ), NaCl (9 mg mL À1 ), CaCl 2 (1.13 mM), KCl (8.38 mM), serotonin (Ser; 0.001 mM), Aflatoxin B1 (AfB1; 500 pg mL À1 ), Annexin A2 (Annx II; 10 ng mL À1 ), cardiac troponin I (cTnI; 100 pg mL À1 ), and cytoskeleton-associated protein 4 (CKAP4; 1 ng mL À1 ). 13 As shown in Fig. S6 (ESI †), the occurrence of a drop in I p for the immunosensor after the incorporation of the SAA protein, was due to immunocomplex formation; upon the further addition of analytes, no significant change in I p response was obtained.…”