Abstract
Selective and sensitive detection of volatile biogenic amines (BAs) have been attracting considerable interests because it can be utilized as freshness markers of food. Herein, an Eu(III) tetrahedron cage (Eu4L24) constructed from a tris-β-diketone is exploited as luminescence sensor for BAs. The spin-coated film of Eu4L24 presents turn-on emissive, and rapidly reversible responses to some volatile BAs with millisecond response time. The turn-on luminescence response to BAs attributes to nucleophilic interaction of amine group to carbonyl carbon atom of trifluoroacetyl in ligand. While the large cavity and rhombus opening lying on the edges of tetrahedron ensure excellent permeability of the film to BAs, which is responsible for the rapidly response times. Furthermore, vapor phase detection of the BAs was extended to practical application for monitoring fish spoilage. The experimental results affirm the practicability of cage as sensing materials for monitoring food spoilage.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
