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Effective Strategy for Colorimetric and Fluorescence Sensing of Phosgene Based on Small Organic Dyes and Nanofiber Platforms

Title
Effective Strategy for Colorimetric and Fluorescence Sensing of Phosgene Based on Small Organic Dyes and Nanofiber Platforms
Authors
Hu, YingChen, LiyanJung, HyeseungZeng, YiyingLee, SongyiSwamy, Kunemadihalli Mathada KotraiahZhou, XinKim, Myung HwaYoon, Juyoung
Ewha Authors
윤주영김명화K.M.K Swamy
SCOPUS Author ID
윤주영scopus; 김명화scopus
Issue Date
2016
Journal Title
ACS APPLIED MATERIALS & INTERFACES
ISSN
1944-8244JCR Link
Citation
vol. 8, no. 34, pp. 22246 - 22252
Keywords
phosgene sensortoxic gas sensorcolorimetric sensorfluorescent chemosensornanofiber
Publisher
AMER CHEMICAL SOC
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Three o-phenylendiamine (OPD) derivatives, containing 4-chloro-7-nitrobenzo [c] [1,2,5] oxadiazole (NBD-OPD), rhodamine (RB-OPD), and 1,8-naphthalimide (NAP-OPD) moieties, were prepared and tested as phosgene chemosensors. Unlike previously described methods to sense this toxic agent, which rely on chemical processes that transform alcohols and amines to respective phosphate esters and phosphoramides, the new sensors operate through a benzimidazolone-forming reaction between their OPD groups and phosgene. These processes promote either naked eye visible color changes and/or fluorescence intensity enhancements in conjunction with detection limits that range from 0.7 to 2.8 ppb. NBD-OPD and RB-OPD-embedded polymer fibers, prepared using the electrospinning technique, display distinct color and fluorescence changes upon exposure to phosgene. even in the solid state.
DOI
10.1021/acsami.6b07138
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자연과학대학 > 화학·나노과학전공 > Journal papers
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