EMPLOYING ELECTROCHEMICALLY SYNTHESISED GRAPHENE FOR BIOSENSING APPLICATON

Abstract

Recently, the two-dimensional allotrope of carbon, graphene, has attracted a great deal of attention. Graphene nanosheet is a one atom thick planar sheet of sp2 bonded carbon atoms, which are densely packed in a honeycomb crystal lattice. This unique nanostructure holds great promise for potential applications in many technological fields such as nanoelectronics, biosensors, nanocomposites, batteries, super capacitors, hydrogen storage etc. There are a number of methods available for the synthesis of graphene and to chemically modified it, from graphite and its derivatives, each one having their own advantages and disadvantages. In this thesis, room temperature synthesis of graphene (RGO) has been developed by using wet electrochemical method. Graphene oxide had been deposited electrochemically onto indium-tin oxide (ITO) coated glass plate, and then reduced in to graphene by hydrazine reduction. This RGO/ITO electrode has used as a matrix for electrochemical DNA biosens...