Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 47, Pages 17751-17754Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja410557x
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Funding
- National Research Foundation of Korea (NRF)
- Korean government (MSIP) [2012R1A3A2048814, 2013R1A1A2011320, 2010-0022028]
- National Research Foundation of Korea [2013R1A1A2011320, 2012R1A3A2048814] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We developed a colorimetric and fluorescent turn-on carbon dioxide sensor that relies on a polydiacetylene, PDA-1, functionalized with amines and imidazolium groups. The pendant amines react with CO2 under basic conditions to form carbamoate anions, which partially neutralize the polymer's positive charges, inducing a phase transition. PDA-1 allows for the selective sensing of CO2 with high sensitivity, down to atmospheric concentrations. Naked-eye detection of CO2 is accomplished either in water solutions of PDA-1 or in the solid state with electrospun coatings of PDA-1 nanofibers.
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