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    • Keywords


      Nitrogen-doped; reduced graphene oxide; soft material dopamine; electrochemical; sensor.

    • Abstract


      Present study develops a facile, low-temperature and cost-effective route for the synthesis of nitrogen-doped reduced graphene oxide (N-rGO). The synthesized N-rGO was characterized using X-ray diffraction (XRD), micro-Ramanand Fourier transform infrared (FTIR) spectroscopies. An electrochemical sensor using N-rGO-modified glassy carbon electrode (GCE) was fabricated for the determination of dopamine (DA), a neurotransmitter. Because the electrochemical determination and quantification of DA play a significant role inmedical diagnosis, such as making soft material-based hydrogelfor wound healing. Cyclic voltammetry (CV), amperometry, differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS)-based standard techniques were used to evaluate and establish the optimum electrochemical sensing performance, detection limit, steadiness and reliability of N-rGO/GCE sensing system to the DA detection. The DPV measurements resemble a wide linear range from 100 to 3000 $\mu$M and demonstrated a limit of detection (LOD) of 57 nM. It is evidently proved that N-rGO/GCE has great potential to be a preferable electrochemical sensing system for DAdetection.

    • Author Affiliations



      1. School of Computing and Electrical Engineering (SCEE), Indian Institute of Technology (IIT), Mandi 175005, India
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    • Supplementary Material

  • Bulletin of Materials Science | News

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