ABSTRACT
Graphene is an interesting carbon material with unique redox properties. Graphene and its composites are promising candidates for fabricating current and next-generation electrochemical sensors. Since giving electric connections for graphene is difficult, usually, they are used to modify existing electrode materials. Graphene properties such as large active surface area, wide potential window, low detection limit, high stability and biocompatibility make to select it as better electrochemical sensor. This small chapter reviews the applications of graphene in sensor applications from voltammetric methods; especially, we have discussed applications for
detection of dopamine, paracetamol, glucose, metal ions, DNA, and protein analysis. Still working scientific communities synthesize graphene with new functional groups to modify graphene texture/microscopic structures. Despite the vast amount of research already conducted on graphene for various sensor applications, the field is still growing and many questions remain unanswered. I have mentioned only few important articles deals with graphene voltammetric sensor applications.
