Back to Search
Start Over
Visual Detection of Coumarin and Umbelliferone for Beverage Safety Based on Eu(III)‐Functionalized HOF Hybrids: Further Constructing an SVM‐Assisted Digital Anti‐Counterfeiting Platform.
- Source :
-
Advanced Optical Materials . Dec2023, Vol. 11 Issue 24, p1-13. 13p. - Publication Year :
- 2023
-
Abstract
- The development of rapid, sensitive, and intuitive intelligent fluorescent materials (IFMs) for monitoring beverage safety is important for human health. In this study, an emerging IFM, a dual‐emitting Eu3+‐functionalized hydrogen‐bonded organic framework (Eu@HOF, Eu@1), is fabricated through coordination post‐synthetic modification. The ligand‐to‐metal charge transfer‐induced energy transfer (LMCT‐ET) from 1 to Eu3+ provides Eu@1 with palpable red fluorescence. Eu@1 as a sensor can specifically discriminate coumarin (Cou), a common spice used in beverages but a suspected carcinogen, with high sensitivity, high efficiency, and excellent anti‐interference. Eu@1 can also quantitatively distinguish 7‐hydroxycoumarin (umbelliferone, Ulf), a metabolite of Cou, in chromatic and ratiometric modes. In realistic milk and soy milk samples, the detection limits (DL) of Eu@1 for Cou are 0.0979 and 0.0511 mg L−1, respectively, whereas that of Ulf in practical serum samples is 0.0099 mg L−1. Furthermore, based on the polyethylene‐vinyl acetate (PEVA) films, three digital anti‐counterfeiting platforms with multiple encryption information are constructed, assisted by a support vector machine. This work proposes a facile pathway for preparing Eu@HOF fluorescent sensors to determine beverage safety and opens the possibility of designing an efficient and precise multifunctional digital anti‐counterfeiting platform via machine learning. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21951071
- Volume :
- 11
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Advanced Optical Materials
- Publication Type :
- Academic Journal
- Accession number :
- 174345774
- Full Text :
- https://doi.org/10.1002/adom.202301175