Figure 8.

Schematic illustration of functionalized graphene-based biosensors: (a) a glucose detection based on GO FET (reprinted with permission from [111]); (b) DNA detection based on printing GO/pentacene FET (reprinted with permission from [110]); (c) urea platform biosensor based on Urease/PEI/RGO FET (reprinted with permission from [112]); (d) Heart failure detection based on Pt NPS/RGO FET (reprinted with permission from [113]); (e) Biotin-SA/GO SPR chip (reprinted with permission from [114]); (f) BSA biosensor based on GO-COOH enhanced SPR (reprinted with permission from [117]); (g) rabbit IgG detection based on RGO SPR (reprinted with permission from [116]); and (h) FRET biosensor based on GQD-PEG aptamer/MoS₂ (reprinted with permission from [23]).