Laser-induced Flexible Graphene Bioelectrodes for Enzymatic Biofuel Cell

Abstract

Herein, a cost-efficient, easy realizable and customized laser-induced flexible graphene (LIFG) have been explored as Enzymatic Biofuel Cell (EBFC) bioelectrodes. These LIFG bioelectrodes were created on a polyamide substrate directly by irradiation with a CO2 laser at optimized laser properties (speed and power). The bioelectrodes were rigorously characterized using Raman spectroscopic technique. Further, the surface morphological study of polyamide film, LIFG, and LIFG with the relevant enzymes modified bioelectrodes has been accomplished using Scanning Electron Microscope (SEM) and Energy Dispersive Spectroscopy (EDS). Subsequently, the voltammetric electrochemical analysis of modified bioelectrodes has been carried out using Linear Sweep Voltammetry (LSV), Cyclic Voltammetry (CV) and Open Circuit Potential (OCP). Such electrochemical characterizations have shown excellent performance and further motivate us towards future studies at the microfluidics level.