Functionalized single-walled carbon nanotubes/polypyrrole composites for amperometric glucose biosensors

Table 1 Influence of electroactive interferents on glucose response at PPY/GOx/SWCNTs-PhSO ₃ ⁻ /PB/Pt electrode

Interferent	Concentration (physiological normal, mM)	i_{Glu + interf}/i_Glu^aat E= 0 V
Ascorbic acid	0.2	1.07
Acetaminophen	0.1	1.05
Uric acid	0.5	1.03

^ai_Glu is the response current to 2 mM glucose; i_{Glu + interf} is the response current to 2 mM glucose in presence of interferent at physiological normal concentration. Results are obtained at the operation potential of 0 V.