Potential of eNose Technology for Monitoring Biological CO₂ Conversion Processes

Abstract

Electronic nose (eNose) is a modern bioelectronic sensor for monitoring biological processes that convert CO₂ into value-added products, such as products formed during photosynthesis and microbial fermentation. eNose technology uses an array of sensors to detect and quantify gases, including CO₂, in the air. This study briefly introduces the concept of eNose technology and potential applications thereof in monitoring CO₂ conversion processes. It also provides background information on biological CO₂ conversion processes. Furthermore, the working principles of eNose technology vis-à-vis gas detection are discussed along with its advantages and limitations versus traditional monitoring methods. This study also provides case studies that have used this technology for monitoring biological CO₂ conversion processes. eNose-predicted measurements were observed to be completely aligned with biological parameters for R² values of 0.864, 0.808, 0.802, and 0.948. We test eNose technology in a variety of biological settings, such as algae farms or bioreactors, to determine its effectiveness in monitoring CO₂ conversion processes. We also explore the potential benefits of employing this technology vis-à-vis monitoring biological CO₂ conversion processes, such as increased reaction efficiency and reduced costs versus traditional monitoring methods. Moreover, future directions and challenges of using this technology in CO₂ capture and conversion have been discussed. Overall, we believe this study would contribute to developing new and innovative methods for monitoring biological CO₂ conversion processes and mitigating climate change.

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