Skip to main content
. 2019 Jan 25;14:835–849. doi: 10.2147/IJN.S184013

Figure 4.

Figure 4

Characterization of the modified electrodes.

Notes: (A) Chronocoulometric curves of (a) GE, (b) rGO-PAMAM-Fc/GE and (c) Au NPs/rGO-PAMAM-Fc/GE for the reduction of 5 mM K3[Fe(CN)6] in 0.1 mol/LPBS. (B) Raman spectrum of (a) rGO/GE, (b) ChOx&ChEt/Au NPs/rGO-PAMAM-Fc/GE. (C) CV for ChOx&ChEt/Au NPs/rGO-PAMAM-Fc/GE in PBS containing 5 mM Fe(CN)63−/4− (scan rate: 10–500 mV/s, scan range: −0.2–0.6 V). (D) The relationship between the square root of the scan rate and the peak current curves, Ipa and Ipc.

Abbreviations: CV, cyclic voltammetry; Fc, ferrocene; GE, gold electrode; NPs, nanoparticles; PAMAM, polyamidoamine; rGO, reduced graphene oxide.