RGD Peptide-Grafted Graphene Oxide as a New Biomimetic Nanointerface for Impedance-Monitoring Cell Behaviors

Figure 7

EIS of the RGD-GO-modified (a) with HPLFs cultured on their surfaces for different times and blank GO-modified ITO electrodes. (b) Equivalent circuit model connected in series for the RGD-GO-modified ITO electrode (c, left) and for the HPLFs (c, right). (d) Equivalent circuit model fitted values of the RGD-GO-modified and GO-modified ITO electrodes (). Statistical significance: and .

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