Abstract
Excessive volatile amines are considered to cause environmental pollution and harm to human health, and especially, ammonia has been reported to be associated with a variety of human diseases. In this article, we developed a gas sensor named CA-SCH3 based on an indanonalkene structure, for real-time/on-site and quantitative detection of volatile amines. The non-luminescent probe containing a bis-vinylogous thioester receptor exhibited high reactivity towards volatile amines, e.g., ammonia, via an amine-thiol scrambling reaction. A turn-on fluorescence signal and a blue shift in the UV-vis absorbance signal were observed for this chemosensor in the presence of ammonia. A paper-based gas sensor loaded with the probe exhibited fluorescence enhancement for the quantification of ammonia gas. Volatile amines from fish spoilage were also captured and detected via the paper sensor. Furthermore, we prepared a polyethylene glycol film interlinked by the CA-SCH3 reagent which exhibited a dual response of macroscopic degradation and fluorescence readout towards ammonia vapors. The fluorescent probe (CA-SCH3) with a novel amine receptor offers extensive possibilities for developing additional photoluminescent detection systems.
Original language | English |
---|---|
Pages (from-to) | 1393-1398 |
Number of pages | 6 |
Journal | Organic Chemistry Frontiers |
Volume | 10 |
Issue number | 6 |
Early online date | 10 Jan 2023 |
DOIs | |
Publication status | Published - 21 Mar 2023 |
Bibliographical note
Funding Information:XLS thanks the National Natural Science Foundation of China (no. 21907080 and 22278330) and Youth Innovative Team (no. xtr052022012) from Xi'an Jiaotong University. JZ thanks the National Natural Science Foundation of China no. 31770909. T. D. J. wishes to thank the Royal Society for a Wolfson Research Merit Award and the Open Research Fund of the School of Chemistry and Chemical Engineering, Henan Normal University for support (2020ZD01).
ASJC Scopus subject areas
- Organic Chemistry