Journal of Sensors / 2019 / Article / Fig 4

Research Article

Reduced Graphene Oxide Decorated with AuNPs as a New Aptamer-Based Biosensor for the Detection of Androgen Receptor from Prostate Cells

Figure 4

(a) Square wave voltammetry plot of the AR aptasensor at potential range 0.0 to -0.5 V, at 40 mV amplitude, and frequency 60 Hz—as AR concentration function (A-I: 0,2 10, 20, 30, 50, 70, 90, and 110 ng/mL), in 10 mM PBS buffer (pH 7.4). (b) Calibration plot of the PSA aptasensor showing signal suppression rate in signal loss percentage and SWV peak current as the function of several PSA concentrations. (c) Selectivity plot of aptasensor in presence of 50 ng/mL of AR, 50 ng/mL of PSA, 50 ng/mL of BSA, and 50 ng/mL of MUC1, showing signal suppression rate in signal loss percentage of SWV peak current.

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