Highly sensitive and selective colorimetric sensing of CO<sub>2</sub> for biomedical applications
<p dir="ltr">The concentration of carbon dioxide (CO<sub>2</sub>) in unhealthy people differs greatly from healthy people. High-precision CO<sub>2</sub> detection with a quick response time is essential for many biomedical applications. A major focus of this r...
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2022
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| Summary: | <p dir="ltr">The concentration of carbon dioxide (CO<sub>2</sub>) in unhealthy people differs greatly from healthy people. High-precision CO<sub>2</sub> detection with a quick response time is essential for many biomedical applications. A major focus of this research is on the detection of CO<sub>2</sub>, one of the most important health biomarkers. We investigated a low-cost, flexible, and reliable strategy by using dyes for colorimetric CO<sub>2</sub> sensing in this study. The impacts of temperature, pH, reaction time, reusability, concentration, and dye selectivity were studied thoroughly. This study described real-time CO<sub>2</sub> analysis. Using this multi-dye method, we got an average detection limit of 1.98 ppm for CO<sub>2</sub>, in the range of 50–120 ppm. A portable colorimetric instrument with a smartphone-assisted unit was constructed to determine the relative red/green/blue values for real-time and practical applications within 15 s of interaction and the readings are very similar to those of an optical fiber probe. Environmental and biological chemistry applications are likely to benefit greatly from this unique approach.</p><h2>Other Information</h2><p dir="ltr">Published in: 3 Biotech<br>License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1007/s13205-022-03396-9" target="_blank">https://dx.doi.org/10.1007/s13205-022-03396-9</a></p> |
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