TY - JOUR

T1 - Ultra-low limit of luminescent detection of gossypol by terbium(III)-based metal-organic framework

AU - Yu, Xiaolin

AU - Ryadun, Alexey A

AU - Potapov, Andrei S

AU - Fedin, Vladimir P

N1 - Acknowledgements: This work was financially supported by the Russian Science Foundation, grant No. 23–43-00017. NIIC analytical characterization facilities used in this work operate with support from the Ministry of Science and Higher Education of the Russian Federation, project numbers 121031700321–3 and 121031700313–8. Yu Xiaolin gratefully appreciates the financial support of China Scholarship Council (CSC, grant No. 202008090088) for his postgraduate course at Novosibirsk State University. The Siberian Branch of the Russian Academy of Sciences (SB RAS) Siberian Supercomputer Centre is gratefully acknowledged for providing supercomputer facilities. The authors thank the XRD facilities of NIIC for collecting the diffraction data. Copyright © 2023 Elsevier B.V. All rights reserved.

PY - 2023/6/15

Y1 - 2023/6/15

N2 - The widespread use of gossypol-containing animal feed and cottonseed oil poses a great threat to water quality and livestock and human health, and there is an urgent need for a sensor for the rapid detection of trace amounts of gossypol in aqueous solutions and cottonseed oil. As a result, an unprecedented three-dimensional metal-organic framework sensor based on terbium(III) and a flexible ligand 4-(3,5-dicarboxyphenoxy)isophthalic acid (H4L) was developed. Tb-MOF, {[Tb(H2O)(HL)]·0.5MeCN·0.25 H2O}n, is highly stable in water and polar organic solvents and exhibits terbium-centered luminescence with 44% quantum yield. Suspensions of MOF in water and ethanol demonstrate a luminescence quenching response to cotton phytotoxicant gossypol with an unprecedented low detection limit of 0.76 nM and 1.89 nM, correspondingly, without interference from the components of cottonseed oil and blood plasma, making it suitable for the detection and determination of gossypol in real-life water and oil samples. Significantly, Tb-MOF is the first highly efficient sensor that uses water as a solvent to detect trace amounts of gossypol, and it can visualize and quantify gossypol in edible-grade cottonseed oil as well, which proves its great potential for practical application. In addition, Tb-MOF exhibited a detection limit for Fe3+ (0.23 μM) among the lowest reported for lanthanide-based MOFs in aqueous solutions so far.

AB - The widespread use of gossypol-containing animal feed and cottonseed oil poses a great threat to water quality and livestock and human health, and there is an urgent need for a sensor for the rapid detection of trace amounts of gossypol in aqueous solutions and cottonseed oil. As a result, an unprecedented three-dimensional metal-organic framework sensor based on terbium(III) and a flexible ligand 4-(3,5-dicarboxyphenoxy)isophthalic acid (H4L) was developed. Tb-MOF, {[Tb(H2O)(HL)]·0.5MeCN·0.25 H2O}n, is highly stable in water and polar organic solvents and exhibits terbium-centered luminescence with 44% quantum yield. Suspensions of MOF in water and ethanol demonstrate a luminescence quenching response to cotton phytotoxicant gossypol with an unprecedented low detection limit of 0.76 nM and 1.89 nM, correspondingly, without interference from the components of cottonseed oil and blood plasma, making it suitable for the detection and determination of gossypol in real-life water and oil samples. Significantly, Tb-MOF is the first highly efficient sensor that uses water as a solvent to detect trace amounts of gossypol, and it can visualize and quantify gossypol in edible-grade cottonseed oil as well, which proves its great potential for practical application. In addition, Tb-MOF exhibited a detection limit for Fe3+ (0.23 μM) among the lowest reported for lanthanide-based MOFs in aqueous solutions so far.

KW - crystal structure

KW - gossypol

KW - luminescence

KW - metal-organic framework

KW - terbium

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85151883748&origin=inward&txGid=b0e9dac20e52eaed547e186bd6432d25

UR - https://www.sciencedirect.com/science/article/pii/S030438942300571X

UR - https://www.mendeley.com/catalogue/022bf323-0dd1-30ba-b625-44ab959d1380/

U2 - 10.1016/j.jhazmat.2023.131289

DO - 10.1016/j.jhazmat.2023.131289

M3 - Article

C2 - 37001211

VL - 452

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

M1 - 131289

ER -