AI Article Synopsis
- A new 3D metal-organic framework, MOF 1, was synthesized, showcasing bright blue-green luminescence with a quantum yield of 74%.
- MOF 1 responds to the toxic compound gossypol by quenching its luminescence and enhances luminescence when interacting with certain trivalent metal cations.
- The framework allows for the detection of gossypol (0.20 µM) and gallium(III) (1.1 µM), providing a method to distinguish between pure sunflower oil and adulterated oil using luminescent properties.
Article Abstract
A new 3D metal-organic framework {[Cd(trbtd)(dcdps)(HO)(EtOH)]∙15DMF} (MOF 1, trbtd = 4,7-di(1,2,4-triazol-1-yl)benzo-2,1,3-thiadiazole, Hdcdps = 4,4'-sulfonyldibenzoic acid) was obtained and its luminescent properties were studied. MOF 1 exhibited bright blue-green luminescence with a high quantum yield of 74 % and luminescence quenching response to a toxic natural polyphenol gossypol and luminescence enhancement response to some trivalent metal cations (Fe, Cr, Al and Ga). The limit of gossypol detection was 0.20 µM and the determination was not interfered by the components of the cottonseed oil. The limit of detection of gallium(III) was 1.1 µM. It was demonstrated that MOF 1 may be used for distinguishing between the genuine sunflower oil and oil adulterated by crude cottonseed oil through qualitative luminescent and quantitative visual gossypol determination.
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| http://dx.doi.org/10.1016/j.foodchem.2024.138747 | DOI Listing |
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