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    Translating Catalysis to Chemiresistive Sensing

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    Type
    Article
    Authors
    Schroeder, Vera cc
    Swager, Timothy M. cc
    KAUST Grant Number
    CRF-2015-SENSORS-2719
    Date
    2018-08-14
    Online Publication Date
    2018-08-14
    Print Publication Date
    2018-08-29
    Permanent link to this record
    http://hdl.handle.net/10754/629800
    
    Metadata
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    Abstract
    Activating molecules or functional groups with high chemoselectivity in complex environments is the central goal of transition-metal-based catalysis. Promoting strong interactions between a selected substrate and a catalytic system can also be used to create highly selective and customizable sensors, and these concepts are widely recognized for enzymatic processes. We demonstrate the successful translation of organometallic reactions to sensing capability. Specifically, we have developed single-walled carbon nanotube (SWCNT) chemiresistive sensors for the highly selective detection of acrylates using conditions for the aerobic oxidative Heck reaction. The sensors mirror the catalytic processes and selectively respond to electron-deficient alkenes by adapting a catalytic reaction system to modulate the doping levels in carbon nanotubes. The sensors readily detect acrylates at parts per million (ppm) levels in untreated air. The concepts presented here are generally applicable and can guide future sensor development based upon known catalytic processes.
    Citation
    Schroeder V, Swager TM (2018) Translating Catalysis to Chemiresistive Sensing. Journal of the American Chemical Society 140: 10721–10725. Available: http://dx.doi.org/10.1021/jacs.8b02654.
    Sponsors
    This work was supported by the KAUST sensor project CRF-2015-SENSORS-2719. We thank Dr. Joseph Walish for fabricating the gas enclosures.
    Publisher
    American Chemical Society (ACS)
    Journal
    Journal of the American Chemical Society
    DOI
    10.1021/jacs.8b02654
    ae974a485f413a2113503eed53cd6c53
    10.1021/jacs.8b02654
    Scopus Count
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