Polydiacetylene-based colorimetric and fluorescent chemosensor for the detection of carbon dioxide

Qingling Xu, Songyi Lee, Yukyung Cho, Myung Hwa Kim, Jean Bouffard, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

184 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)17751-17754
Number of pages4
JournalJournal of the American Chemical Society
Volume135
Issue number47
DOIs
StatePublished - 27 Nov 2013

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