Gold-Nanoparticle Decorated Graphene-Nanostructured Polyaniline Nanocomposite-Based Bienzymatic Platform for Cholesterol Sensing

Figure 3

SEM images of (a) NSPANI-AuNP-GR/ITO, (b) ChOx/NSPANI-AuNP-GR/ITO, and (c) ChOx-HRP/NSPANI-AuNP-GR electrodes.

(a)

(b)

(c)