Towards Real-Time Oxygen Sensing: From Nanomaterials to Plasma

Frontiers in Sensors

Moumita Ghosh¹  Varghese Kurian⁴  Muhammed Nihal C. V.⁶  G. Mohan Rao⁷  K. V. Chinmaya⁸  Vinitha Johny⁸  Siddharth Ghosh⁹ 

[1] Advanced Technology Group of FEI Electron Optics, Thermo Fischer Scientific, Eindhoven, Netherlands;Cavendish Laboratory, Maxwell Centre, University of Cambridge, Cambridge, United Kingdom;Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge, United Kingdom;Department of Science, Open Academic Research Council, Kolkata, India;Department of Science, Open Academic Research UK CIC, Cambridge, United Kingdom;Department of Technology, Open Academic Research Council, Kolkata, India;Department of Technology, Open Academic Research UK CIC, Cambridge, United Kingdom;International Center for Nanodevices, Centre for Nano Science and Engineering, Indian Institute of Science, Bengaluru, India;St John’s College, University of Cambridge, Cambridge, United Kingdom;

关键词: oxygen sensing;    sensors;    nanomaterials;    plasma;    point-care devices;    COVID-19;   

DOI  :  10.3389/fsens.2021.826403

来源: DOAJ

【 摘 要 】

A significantly large scope is available for the scientific and engineering developments of high-throughput ultra-high sensitive oxygen sensors. We give a perspective of oxygen sensing for two physical states of matters—solid-state nanomaterials and plasma. From single-molecule experiments to material selection, we reviewed various aspects of sensing, such as capacitance, photophysics, electron mobility, response time, and a yearly progress. Towards miniaturization, we have highlighted the benefit of lab-on-chip-based devices and showed exemplary measurements of fast real-time oxygen sensing. From the physical–chemistry perspective, plasma holds a strong potential in the application of oxygen sensing. We investigated the current state-of-the-art of electron density, temperature, and design issues of plasma systems. We also show numerical aspects of a low-cost approach towards developing plasma-based oxygen sensor from household candle flame. In this perspective, we give an opinion about a diverse range of scientific insight together, identify the short comings, and open the path for new physical–chemistry device developments of oxygen sensor along with providing a guideline for innovators in oxygen sensing.

【 授权许可】

Unknown