Assessment of Cytochrome c and Chlorophyll a as Natural Redox Mediators for Enzymatic Biofuel Cells Powered by Glucose

The development of new high-power biofuel cells has been limited in the past by slow or indirect charge transfer. In this study, enzymatic cell (EBFC) systems were explored with different materials used to evaluate their applicability as redox mediators. Redox mediators natures have selected for research. Cytochrome c, Chlorophyll a, and supernatant ultrasonically disrupted algae Chlorella vulgaris examined potential effect heparin on EBFC was also evaluated under same analytical conditions. measurements open circuit (OCP) evaluation current response two modes measurement performed (i) during cycling cyclic voltammetry (ii) at constant value chronoamperometry, applied EBFC. cells-based efficient glucose oxidase (GOx) based Electron transfer from GOx electrode facilitated through adsorbed electrode. Electrodes modified a- c-based suitable biosensors. This demonstrated increasing concentration within 0 mM–100 mM system, density increased, system reached equilibrium rather faster regarding electrochemical reaction. power is an important feature revealing action cells. highest values generated application redox-mediated a surface about 2.5–4.0 µW/cm2. Control study polished graphite maximum 0.02471