Table 1.

Comparison of FET sensors for molecule detection.

SLB?	Electron channel	Analyte	LOD	Solvent type & conc.	Refs.
○	Si	Av, S.Av, N.Av	100 pM	1× (100 mM) PBS	Our work
○	CNT	S.Av	2.5 μM	10 mM PBS	46
○	CNT	S.Av	5 μM	1 μM PBS	47
○	OSC	S.Av	10 nM	10 mM PBS	48
○	Graphene	Magainin 2	100 pM	10 mM NaF	27
○	Graphene	CTxB	12.5 nM	10 mM HEPES	49
×	Si	PSA	75 fg mL−1	1 mM PBS, 2 mM KCl	50
×	Si	Thrombin	330 pM	Acetate buffer	51
×	Si	PSA	150 fM	100 μM PBS, 100 μM KCl	52
×	Si	cTnT	1 fg mL−1	100 μM PBS	53
×	Si	PSA	1 pg mL−1	1 μM PBS, 2 μM KCl	54

LOD limit of detection, Av Avidin, S.Av Streptavidin, N.Av NeutrAvidin, OSC organic semiconductor, PSA Prostate-specific antigen, cTnT Cardiac troponin T.