. 2017 Apr 7;17(4):794. doi: 10.3390/s17040794

Table 4.

Figures of merit of selected enzyme-less immunosensors using graphene and diffusing redox probe.

Target	Probe	LoD	Method	Reference
β-Lactoglobulin	Ab	0.85 pg mL⁻¹	Fe(CN)₆^3−/4−/DPV	[52]
AFP protein	Ab	5 pg mL⁻¹	H₂O₂/AuPdNPs/CV	[53]
AFP protein	Ab	0.03 ng mL⁻¹	Fe(CN)₆^3−/4−/TiO₂/GR/Chi/AuNPs/DPV	[54]
AFP protein	Ab	0.06 ng mL⁻¹	Fc/DPV	[55]
AFP protein	Ab	0.01 ng mL⁻¹	Gr/SnO₂/Au Fe(CN)₆^3−/4−/DPV	[56]
AFP protein	Ab	12 mU mL⁻¹	Fe(CN)₆^3−/4−/DPV	[57]
CA 15-3	Ab	0.033 pg mL⁻¹	H₂O₂/CeO₂NPs	[58]
hCG	Ab	0.62 ng mL⁻¹	Fe(CN)₆^3−/4−/CV	[59]
PSA protein	Ab	0.6 ng mL⁻¹	Fe(CN)₆^3−/4−/CV	[60]
PSA protein	Ab	1 pg mL⁻¹	H₂O₂/ZnO/AgNPs/CV	[61]
PSA protein	Ab	0.05 pg mL⁻¹	H₂O₂/Fc/DPV	[62]
PSA protein	Ab	0.01 ng mL⁻¹	Fe(CN)₆^3−/4−/AgNPs/CV	[63]
E. Coli	Ab	3.8 CFU mL⁻¹	Fe(CN)₆^3−/4−/CuONPs/EIS	[64]
SCCA protein	Ab	25 fg mL⁻¹	H₂O₂/PtPdCuNPs	[65]
CEA protein	Ab	0.17 pg mL⁻¹	H₂O₂/PtV₂O₅	[66]
CEA protein	Ab	0.2 pg mL⁻¹	H₂O₂/Fe₃ONPs	[67]
CEA protein	Ab	0.2 pg mL⁻¹	H₂O₂/IrNPs	[68]
CRP protein	Ab	0.17 ng mL⁻¹	H₂O₂/AgPtNPs	[69]