Wearable nano-based gas sensors for environmental monitoring and encountered challenges in optimization

Houshmand Rezaghol, Sara and Kassanos, Panagiotis and Keshavarz, Meysam and Duru, Pelin and Kayalan, Cemre Irmak and Kale, İzzet and Bayazıt, Mustafa Kemal (2023) Wearable nano-based gas sensors for environmental monitoring and encountered challenges in optimization. Sensors, 23 (20). ISSN 1424-8220

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With a rising emphasis on public safety and quality of life, there is an urgent need to ensure optimal air quality, both indoors and outdoors. Detecting toxic gaseous compounds plays a pivotal role in shaping our sustainable future. This review aims to elucidate the advancements in smart wearable (nano)sensors for monitoring harmful gaseous pollutants, such as ammonia (NH3), nitric oxide (NO), nitrous oxide (N2O), nitrogen dioxide (NO2), carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), sulfur dioxide (SO2), ozone (O3), hydrocarbons (CxHy), and hydrogen fluoride (HF). Differentiating this review from its predecessors, we shed light on the challenges faced in enhancing sensor performance and offer a deep dive into the evolution of sensing materials, wearable substrates, electrodes, and types of sensors. Noteworthy materials for robust detection systems encompass 2D nanostructures, carbon nanomaterials, conducting polymers, nanohybrids, and metal oxide semiconductors. A dedicated section dissects the significance of circuit integration, miniaturization, real-time sensing, repeatability, reusability, power efficiency, gas-sensitive material deposition, selectivity, sensitivity, stability, and response/recovery time, pinpointing gaps in the current knowledge and offering avenues for further research. To conclude, we provide insights and suggestions for the prospective trajectory of smart wearable nanosensors in addressing the extant challenges.
Item Type: Article
Uncontrolled Keywords: environmental detection; gas-sensing nanomaterials; gaseous pollutants; sensor performance optimization; wearable nanosensors
Divisions: Faculty of Engineering and Natural Sciences
Sabancı University Nanotechnology Research and Application Center
Depositing User: Sara Houshmand Rezaghol
Date Deposited: 05 Feb 2024 16:37
Last Modified: 05 Feb 2024 16:37
URI: https://research.sabanciuniv.edu/id/eprint/48654

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