Toward Sensor Solutions for Pervasive Gas Monitoring
Contemporary monitoring requirements of gases for demanding applications such as indoor air quality, environmental surveillance, medical diagnostics, industrial safety, biopharmaceutical process control, homeland security, and others push the limits of existing detection concepts where we are reaching their fundamental performance limits. This talk is focused on sensing concepts and implementations that bridge the gap between the existing and required sensing capabilities. In this talk, we will pose several fundamental and practical questions on possibilities for new principles of gas sensing and will demonstrate how these questions are addressed in the developments of new sensor designs with previously unthinkable capabilities in wearable, stationary, and other formats. We will illustrate the capabilities of these sensors to quantify individual chemical components in mixtures, reject interferences, and enhance response stability. Such capabilities is attractive when performance advantages of traditional mature analytical instruments are cancelled by application-specific requirements that demand unobtrusive form factors, low or no power consumption, and continuous operation.