Abstract
Current advancements in the nanotechnology have witnessed large number of accomplishments pertaining to zinc oxide (ZnO) nanomaterials. ZnO nanostructures have been used in diverse areas varying from optoelectronic activities to catalysis, sensing, biomedical areas and water treatment applications. The biocompatible nature of ZnO has opened the area of its utilization in the treatment of deadly diseases. The easy synthesis and electrochemical working capability of ZnO has currently been used in the area of chemical and electrochemical sensing of harmful analytes. The current review discusses the scope of sensing application of ZnO nanomaterials. The applications of ZnO nanomaterials have been discussed by taking their role in chemical, electrochemical, biosensing and gas sensing applications in details.