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International audienceThis review summarises the main electrochemical sensors and biosensors developed for assessing the reactive oxygen (ROS) and nitrogen (RNS) species of interest in clinical and physiological analysis. Among these species, a special attention is focused on sensors for the detection of the highly reactive superoxide radicals O2.−, the very stable hydrogen peroxide H2O2, as well as the well-known RNS nitric oxide (NO.). The different methods adopted for the detection of each species are commented, considering both sensor and biosensors detection strategies

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The last decade has witnessed an intensive research effort in the field of electrochemical sensors, with a particular focus on the design of amperometric biosensors for diverse analytical applications. In this context, nanomaterial integration in the construction of amperometric biosensors may constitute one of the most exciting approaches. The attractive properties of nanomaterials have paved the way for the design of a wide variety of biosensors based on various electrochemical detection methods to enhance the analytical characteristics. However, most of these nanostructured materials are not explored in the design of amperometric biosensors. This review aims to provide insight into the diverse properties of nanomaterials that can be possibly explored in the construction of amperometric biosensors.

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