CONDUCTING PAPER BASED BIOSENSOR FOR GLUCOSE DETECTION

Abstract

In this work, efforts have been made to fabricate a paper based sensor comprising of PEDOT: PSS and reduced graphene oxide/ TiO2 nanocomposite. The effect of different solvent (Glycerine, Ethylene glycol, Dimethylsulfoxide, Methanol) on the conductivity of the paper has also been investigated. The conductivity of the PEDOT: PSS coated paper significantly increases from 6.9 x 10-5 S/cm to 1.1 x 10-4 S/cm on treatment with Ethylene glycol. Further the modification of conducting paper with synthesized rGO/TiO2 nanocomposite shows better electrochemical properties. The fabricated conducting paper was utilised for glucose detection shows high sensitivity (83.86 μA M-1). This paper electrode may be a promising substitute over other expensive conventional electrodes.