Preparation of Chitosan-Based Enzyme Inks for Paper-Based Screen-Printed Biofuel Cells

摘要

We have developed paper-based screen-printed biofuel cells using MgO-templated carbon (MgOC) as an electrode material in which a mediator and an enzyme were immobilized by dropping the solutions on the MgOC surface. However, the immobilization scheme should be shortened for practical applications. In this study, we newly prepare an enzyme-modified carbon ink using chitosan, which has high bio-affinity as a binder. By preparing chitosan-based enzyme ink, it becomes possible to immobilize the enzyme on the electrode by a simple printing process. A paper-based glucose/O_2 biofuel cell was fabricated by screen printing with the enzyme-modified carbon inks. In this abstract, we describe the results of the glucose anode.