Synthesis of Polydopamine Functionalized Reduced Graphene Oxide-Palladium Nanocomposite for Laccase Based Biosensor

Figure 7

(a) Chronoamperometric response of PDA-Lac-rGO-Pd/GCE on successive addition of different concentration and volume of catechol solutions into pH 5.0 0.1 M acetate buffer solution; applied potential: 0.5 V. Inset: a magnification of the line before 300 s; (b) the calibration curve of PDA-Lac-rGO-Pd/GCE for catechol.

(a)

(b)