Figure 3From: A disposable biosensor based on immobilization of laccase with silica spheres on the MWCNTs-doped screen-printed electrodeCVs of Lac/Si/MWCNTs/SPE (A), Lac/SPE (B), Lac/MWCNTs/SPE (C) in 0.10 M PBS (pH 5.0) in the absence (black curves) and presence of 60 μM DA (red curves). (D) CVs of Si/MWCNTs/SPE (blue curve) and Lac/Si/MWCNTs/SPE (red curve) in 0.10 M PBS (pH 5.0) in the presence of 60 μM DA. Scan rate: 50 mV s-1.Back to article page