Colorimetric and Fluorescent Detecting Phosgene by a Second-Generation Chemosensor

Ying Hu, Xin Zhou, Hyeseung Jung, Sang Jip Nam, Myung Hwa Kim, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


Because of the current shortage of first-generation phosgene sensors, increased attention has been given to the development of fluorescent and colorimetric based methods for detecting this toxic substance. In an effort focusing on this issue, we designed the new, second-generation phosgene chemosensor 1 and demonstrated that it undergoes a ring-opening reaction with phosgene in association with color and fluorescent changes with a detection limit of 3.2 ppb. Notably, in comparison with the first-generation sensor RB-OPD, 1 not only undergoes a much faster response toward phosgene with an overall response time within 2 min, but it also generates no byproducts during the sensing process. Finally, sensor 1 embedded nanofibers were successfully fabricated and used for accurate and sensitive detection of phosgene.

Original languageEnglish
Pages (from-to)3382-3386
Number of pages5
JournalAnalytical Chemistry
Issue number5
StatePublished - 6 Mar 2018


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