One-Step Electrosynthesis of Graphene Oxide-Doped Polypyrrole Nanocomposite as a Nanointerface for Electrochemical Impedance Detection of Cell Adhesion and Proliferation Using Two Approaches

Figure 4

Surface characterization. (a) SEM images of the synthesized GO/PPy nanocomposites and pure PPy. (b) Three-dimensional topology morphology images of GO/PPy and pure PPy. (c) Surface roughness analysis, (d) thickness analysis, and (e) contact angle test of GO/PPy and pure PPy. The value represents mean ± standard deviation (). and .

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