Evaluation of the selectivity of the proposed sensor for SFB in the presence of interfering molecules with one millionth of the concentration of the SFB analyte.

Interferant	Concentration	Current reduction (%)
Entecavir	1 × 10−6 M	36.7
Ledipasvir	1 × 10−6 M	28.7
Tenofovir	1 × 10−6 M	32.9
Oseltamivir	1 × 10−6 M	48.2