Emerging trends in microfluidic-assisted nanomaterial synthesis for their high-resolution gas sensing applications

Abstract

The proliferation of point-of-use (PoU) or point-of-care (PoC) detecting technologies has resulted in a significant expansion of miniaturized sensors that were indispensable in the battle against pollution, arising contaminants, and pandemics. These sensors enable immediate identification of gases and airborne pathogens. Notwithstanding, the economical fabrication of miniature gas sensors, while maintaining their selectivity, sensitivity, and response time, presents a significant challenge. To address the aforementioned constraints, microfluidic technology has been utilized as a potential solution, rendering it a highly favorable option for PoU or PoC applications. Microfluidic-based gas sensors, while showing promising results, are still in their infancy. This review focuses on emerging trends in the synthesis of novel materials and their application is microfluidic gas sensors. Further, the challenges pertaining to this sensing and future perspective with the possible solution have been discussed.