Journal of Sensors / 2019 / Article / Fig 3

Research Article

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

Figure 3

AR aptasensor stability. (a) SWV of AR aptasensor stabilization over time (A-G: 0, 20, 40, 60, 80, 100, and 120) at potential range from 0.0 to -0.5 V, at 40 mV amplitude, and frequency 60 Hz in 10 mM PBS (pH 7.4). (b) Signal suppression rate for background signal loss percentage of the SWV peak current as the function of time. (c) X-ray spectroscopy analysis (EDS) and scanning electron microscopy (SEM) of the rGO-AuNPs nanocomposite.

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