Chitosan improves stability of carbon nanotube biocathodes for glucose biofuel cellsElectronic supplementary information (ESI) available: Experimental details. See DOI: 10.1039/c4cc04862h

We demonstrate a novel combined chitosan-carbon-nanotube-enzyme biocathode with a greatly enhanced and stable long-term current density of −0.19 mA mL −1 . The fibrous microstructure of the electrode improves the performance of the biocathode by creating a protective microenvironment, preventing the loss of the electrocatalytic activity of the enzyme, and providing good oxygen diffusion. We demonstrate a novel combined chitosan-carbon-nanotube-enzyme biocathode with a fibrous microstructure that improves the performance by creating a protective microenvironment, preventing the loss of the electrocatalytic activity of the enzyme, and providing good oxygen diffusion.