Reduced Graphene Oxide/Gold Nanoparticles Decorated Electrodes for the Detection of SARS-Cov-2
The reduced graphene oxide and gold nanoparticles were prepared by electrochemical deposition on the surface of screen-printed carbon electrodes to construct a graphene electrochemical sensor for SARS-Cov-2 detection.The successful modification of the nanocomposites on the electrode surface was characterized and analyzed by SEM and corresponding electrochemical methods.The performance of the sensor was also tested by differential pulse voltammetry,and the experimentally constructed electrochemical sensor has good sensitivity,with a minimum detection limit of 7.09×10-9 mol/L,a linear range of 10-10～10-6 mol/L,and good sensitivity and specificity for the direct detection of SARS-Cov-2 clinical samples without nucleic acid amplification.
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