Recent Developments of Nanostructured Electrodes for Bioelectrocatalysis of Dioxygen Reduction

Figure 18

(A) UV-vis absorption spectra of multilayer on quartz substrate (laccase as the outmost layer) with different numbers of layers: 1–15 (curves from bottom to top). The inset shows the absorbance at 267 nm as a function of the number of layers. (B) Cyclic voltammograms of the (MWCNT/polylysine/laccase)₁₅-modified ITO electrodes in 0.1 mol dm⁻³ PBS (pH 6.0), under (a) N₂-saturated condition and (b) air-saturated conditions, respectively. Scan rate 0.05 V s⁻¹ (from [19]).