Study of nitrogen doped reduced graphene oxide (rGO) for its potential application as a Glucose sensor

Abstract

This work describes synthesizing porous nitrogen-doped reduced graphene oxide (N-rGO) via hydrothermal synthesis and it's application as non- enzymatic glucose sensor . Before that, graphene oxide (GO) was prepared using a modified version of Hummer's process. The crystallinity and phase have been verified with an XRD device. Morphological analysis using FESEM images confirms the porous nature. Conversely, comparisons of their UV-vis have been done to help determine the band gaps between GO and rGO. In this project, electrical (resistive) biosensor for glucose monitoring has been experienced. A comparison study of different layers, enzymatic interaction and their out has been carried for the rGO based devices. Here, alpha- glucose has been tested with the biosensor. After a layer-dependent experiment, it can be expressed from the I-V analysis 1layer rGO device has shown a better response than GOx+rGO-coated all devices.1L rGO-coated device also gives better response than 1L GOx+rGO and from LOD curve it can be clearly stated that 1 layer rGO coated device has better sensibility in all aspect.