Highly Sensitive Amperometric α-Ketoglutarate Biosensor Based on Reduced Graphene Oxide-Gold Nanocomposites

Figure 1

CV for the electrodeposition of (a) 1.0 mg·mL⁻¹ GO and (b) 1.0 mg·mL⁻¹ GO + 200 μM HAuCl₄ in 0.05 M pH 9.0 CBS at a scan rate of 20 mV·s⁻¹. Typical SEM images obtained from (c) rGO and (d) rGO-Au_nano film on Si substrate, respectively. Inset: EDS pattern of the rGO-Au_nano.

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