Graphene Oxide-Gold Star Construct on Triangular Electrodes for Alzheimer’s Disease Identification

Figure 3

(a) Determination of miRNA-137 on the probe-GNS modified surface. Drastic increment of current was noted after hybridization (100 pM; red line); PEG-COOH is indicated by sky blue line. (b) Different miRNA-137 hybridization levels. 1 fM–10 pM concentrations with constant comp-miRNA-137 on the sensing surfaces. Current increment was noted with all miRNA-137 concentrations. Coloured lines are PEG-COOH (sky blue), 1 fM (black), 10 fM (green), 100 fM (red), 1 pM (blue), and 10 pM (pink).

(a)

(b)