TY - JOUR

T1 - Multiresponsive luminescent metal–organic framework for cooking oil adulteration detection and gallium(III) sensing

AU - Павлов, Дмитрий Игоревич

AU - Юй, Сяолинь

AU - Рядун, Алексей Андреевич

AU - Самсоненко, Денис Геннадьевич

AU - Дороватовский, Павел Владимирович

AU - Лазаренко, Владимир

AU - Sun, Na

AU - Sun, Yaguang

AU - Федин, Владимир Петрович

AU - Потапов, Андрей Сергеевич

N1 - This work was supported by the Russian Science Foundation , grant No. 23-43-00017 . Na Sun and Yaguang Sun acknowledge The Belt and Road Innovative Talent Exchange Foreign Experts Program ( DL2022006007L ). Xiaolin Yu gratefully appreciates the financial support of China Scholarship Council (CSC, grant No. 202008090088 ) for his postgraduate course at Novosibirsk State University. The authors thank Dr. Konstantin A. Kovalenko for measuring the gas adsorption isotherms.

PY - 2024/7/1

Y1 - 2024/7/1

N2 - A new 3D metal–organic framework {[Cd16(tr2btd)10(dcdps)16(H2O)3(EtOH)]∙15DMF}n (MOF 1, tr2btd = 4,7-di(1,2,4-triazol-1-yl)benzo-2,1,3-thiadiazole, H2dcdps = 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 (Fe3+, Cr3+, Al3+ and Ga3+). 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.

AB - A new 3D metal–organic framework {[Cd16(tr2btd)10(dcdps)16(H2O)3(EtOH)]∙15DMF}n (MOF 1, tr2btd = 4,7-di(1,2,4-triazol-1-yl)benzo-2,1,3-thiadiazole, H2dcdps = 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 (Fe3+, Cr3+, Al3+ and Ga3+). 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.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85185831378&origin=inward&txGid=5b44df257633f251372186dd0a181432

U2 - 10.1016/j.foodchem.2024.138747

DO - 10.1016/j.foodchem.2024.138747

M3 - Article

C2 - 38387317

VL - 445

JO - Food Chemistry

JF - Food Chemistry

SN - 0308-8146

M1 - 138747

ER -