Recent Developments in Carbon Sensors for At-Source Electroanalysis

 

Our understanding of the world around us has been greatly enhanced by our ability to detect and quantify analytes in the environment and in biology. It is highly beneficial to perform analysis at the site of interest, as many situations do not afford the luxury of time required for samples to be collected and sent for analysis. Some processes necessitate immediate detection to facilitate rapid action. As an example, harmful environmental phenomena can result from dynamic events, such as the recent spate of tropical cyclones in the Caribbean and Southeastern region of the United States. These storms have mobilized nutrients, facilitating large-scale algal blooms that are damaging to marine ecosystems and human health. The rapid delivery of analytical information during such events is the key to quickly mitigating detrimental effects. Another example is analytically monitoring the quality of drinking water in the context of avoiding residential crises such as in Flint, Michigan, where residents were exposed to high levels of Pb. Other examples include monitoring airborne workplace hazards with smart wearable devices and point-of-care (POC) diagnostics for monitoring health. An excellent, low-cost, and portable approach to measurements at the location of interest is electroanalysis. Specifically, carbon-based electrochemical sensors offer a versatile, chemically functional, and (bio)- compatible platform for detecting a variety of analytes. Carbon is utilized in many forms including graphene, composites, and fibers. With carbon-based sensors, scientists are creating novel electroanalytical devices that are greatly improving the speed and quality of at-source detection. To read on click here.

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