ABSTRACT
Chemical sensors are self-contained analytical instruments that offer real-time information on chemical composition. A chemical sensor will allow the tracking and detection of target analytes and then convert the chemical reaction into an output signal by a transducer. Such devices are widely used for various applications, including clinical analysis for health and hygiene, environment monitoring for polluting substances, and monitoring of industrial processes. Recently, the development of chemical sensors has been considered not only for cost-effectiveness, but the need for selectivity, easy handling, sensitivity, and rapid sensing devices also contribute to a significant factor. Thus, advances in nanotechnology have prompted the employment of various nanomaterials as an effective electrode material to amplify and improve chemical detection for better sustainability, as well as to meet the aforementioned aims. This chapter describes significant advancement in developing nanomaterials based on different functional nanomaterials and applications in chemical sensors. The synthesis of functional nanomaterials is also covered, and present challenges and future prospects for chemical sensing applications are discussed. This chapter focuses upon the selective studies on functional nanomaterials for chemical sensor applications.
