Antigout Effects of Plantago asiatica: Xanthine Oxidase Inhibitory Activities Assessed by Electrochemical Biosensing Method

Figure 3

Illustrations of the electron transfer signal blocking activities. (a) Scanning electron microscopy of double-wall carbon nanotubes (DCNTs) modified glassy carbon electrode (DCNTs/GCE, left) and DCNTs plus XOD modified glassy carbon electrode (XOD/DCNTs/GCE, right). (b) Cyclic voltammograms of DCNTs/GCE and XOD/DCNTs/GCE (left), and XOD/DCNTs/GCE in the absence and presence of xanthine, in the presence of xanthine and allopurinol (right). The scan rate of the cyclic voltammograms is 100 mV/s.

(a)

(b)