Fig. 8.

Metallic cotton fiber electrode-based biofuel cell. (a) Preparation of the metallic cotton fiber based cathode and the glucose oxidase-metallic cotton fiber-based anode using small-molecule ligand-induced layer-by-layer assembly. (b) Redox process for an metallic cotton fiber-biofuel cell composed of a cathode and an anode. (c) Demonstration of metallic cotton fiber based biofuel cell performing different reactions at the cathode and anode; Adapted with permission from Ref. [251] Copyright 2018 Nature Publishing.