Fig. 4: Glucose detection characteristics of the graphene SFETs.
Glucose detection responses using a pristine graphene and b Au-decorated graphene. Calibration of responses for c pristine graphene and d Au-decorated graphene to 1–5 mM of glucose plotted using Freundlich equation. Repetitive curves of response to 5 mM glucose solution of e pristine graphene and f Au-decorated graphene. τ90 value of g pristine graphene and h Au-decorated graphene response to 5 mM glucose solution. Detection limit measurements for i pristine and Au-decorated graphene. Calibration of responses for j pristine graphene, k Au-decorated graphene to 10 µM–10 mM of glucose plotted using Freundlich equation.
