4.8 Article

Activity-Based Approach for Selective Molecular CO2 Sensing

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 144, Issue 19, Pages 8717-8724

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jacs.2c02361

Keywords

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Funding

  1. ETH Zurich
  2. European Research Council under the European Union [757608, 884505]
  3. International Human Frontier Science Program Organization [LT000861/2020-L]
  4. NCCR Catalysis, a National Centre of Competence in Research - Swiss National Science Foundation
  5. German Academic Scholarship Foundation
  6. Fundacion Ramon Areces
  7. European Research Council (ERC) [884505] Funding Source: European Research Council (ERC)

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This study introduces a unique class of selective fluorescent carbon dioxide sensors that address the challenge of selective sensing at the molecular level. The sensors demonstrate utility in various multidisciplinary applications, showcasing their potential as broadly applicable tools to monitor and visualize carbon dioxide.
Carbon dioxide (CO2) impacts every aspect of life, and numerous sensing technologies have been established to detect and monitor this ubiquitous molecule. However, its selective sensing at the molecular level remains an unmet challenge, despite the tremendous potential of such an approach for understanding this molecule's role in complex environments. In this work, we introduce a unique class of selective fluorescent carbon dioxide molecular sensors (CarboSen) that addresses these existing challenges through an activity-based approach. Besides the design, synthesis, and evaluation of these small molecules as CO2sensors,we demonstrate their utility by tailoring their reactivity and optical properties, allowing their use in a broad spectrum of multidisciplinary applications, including atmospheric sensing, chemical reaction monitoring, enzymology, and live-cell imaging. Collectively, these results showcase the potential of CarboSen sensors as broadly applicable tools to monitor and visualize carbon dioxide across multiple disciplines.

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