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A β-cyclodextrin/fluorinated covalent triazine framework hybrid fiber for synergistic solidphase microextraction of aflatoxins in cereals.

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Title: A β-cyclodextrin/fluorinated covalent triazine framework hybrid fiber for synergistic solidphase microextraction of aflatoxins in cereals.
Authors: Pan, Lining1 (AUTHOR), Liu, Kunling2 (AUTHOR), Wang, Bing1 (AUTHOR), Wang, Nan2 (AUTHOR), Xie, Fuwei1 (AUTHOR), Nie, Cong1 (AUTHOR) congnie@aliyun.com, Qin, Yaqiong1 (AUTHOR), Wang, Xiaoyu1 (AUTHOR), Zhao, Wenjie1,2,3 (AUTHOR) wjiezh@126.com
Source: Food Chemistry. Dec2025:Part 3, Vol. 496, pN.PAG-N.PAG. 1p.
Subjects: Aflatoxins, Cereal products, Solid phase extraction, Cyclodextrins, Porous materials, Food safety, Density functional theory, High performance liquid chromatography
Abstract: A β-cyclodextrin-functionalized fluorinated covalent triazine framework (β-CD/FCTF) was developed as a high-performance solid-phase microextraction (SPME) coating for efficient extraction of aflatoxins (AFs) from cereals. The composite synergistically combines the high surface area of FCTF with the host-guest recognition capability of β-CD and polar interactions afforded fluorine/triazine groups. Coupled with high-performance liquid chromatography with fluorescence detection, the method achieved detection limits of 0.02–0.11 ng/g and quantification limits of 0.06–0.36 ng/g. Recoveries from spiked cereal samples ranged from 84.5 to 130 % (RSD ≤ 10.2 %). Density functional theory (DFT) calculations confirmed enhanced adsorption through synergistic host-guest inclusion, hydrogen bonding, and F–π interactions. The coating showed 2.1–2.3 fold higher enrichment than pure FCTF, excellent anti-interference, and reusability. This work establishes a reliable and robust analytical platform for trace AFs detection in food commodities and proposes a generalizable covalent grafting strategy for the rational design of functional porous materials in food safety monitoring. • A β-CD modified fluorinated covalent triazine framework was developed for efficient aflatoxin extraction. • Extraction mechanism revealed by DFT calculations shows synergistic host-guest and polar interactions. • The coating exhibits high enrichment factors, excellent anti-interference ability, and outstanding reusability. • Method enables reliable detection of trace aflatoxins in complex cereal samples. [ABSTRACT FROM AUTHOR]
Copyright of Food Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 189496513
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  Label: Title
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  Data: A β-cyclodextrin/fluorinated covalent triazine framework hybrid fiber for synergistic solidphase microextraction of aflatoxins in cereals.
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  Data: <searchLink fieldCode="AR" term="%22Pan%2C+Lining%22">Pan, Lining</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Kunling%22">Liu, Kunling</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Bing%22">Wang, Bing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Nan%22">Wang, Nan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Fuwei%22">Xie, Fuwei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nie%2C+Cong%22">Nie, Cong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> congnie@aliyun.com</i><br /><searchLink fieldCode="AR" term="%22Qin%2C+Yaqiong%22">Qin, Yaqiong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Xiaoyu%22">Wang, Xiaoyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Wenjie%22">Zhao, Wenjie</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> wjiezh@126.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Food+Chemistry%22">Food Chemistry</searchLink>. Dec2025:Part 3, Vol. 496, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Aflatoxins%22">Aflatoxins</searchLink><br /><searchLink fieldCode="DE" term="%22Cereal+products%22">Cereal products</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+phase+extraction%22">Solid phase extraction</searchLink><br /><searchLink fieldCode="DE" term="%22Cyclodextrins%22">Cyclodextrins</searchLink><br /><searchLink fieldCode="DE" term="%22Porous+materials%22">Porous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Food+safety%22">Food safety</searchLink><br /><searchLink fieldCode="DE" term="%22Density+functional+theory%22">Density functional theory</searchLink><br /><searchLink fieldCode="DE" term="%22High+performance+liquid+chromatography%22">High performance liquid chromatography</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A β-cyclodextrin-functionalized fluorinated covalent triazine framework (β-CD/FCTF) was developed as a high-performance solid-phase microextraction (SPME) coating for efficient extraction of aflatoxins (AFs) from cereals. The composite synergistically combines the high surface area of FCTF with the host-guest recognition capability of β-CD and polar interactions afforded fluorine/triazine groups. Coupled with high-performance liquid chromatography with fluorescence detection, the method achieved detection limits of 0.02–0.11 ng/g and quantification limits of 0.06–0.36 ng/g. Recoveries from spiked cereal samples ranged from 84.5 to 130 % (RSD ≤ 10.2 %). Density functional theory (DFT) calculations confirmed enhanced adsorption through synergistic host-guest inclusion, hydrogen bonding, and F–π interactions. The coating showed 2.1–2.3 fold higher enrichment than pure FCTF, excellent anti-interference, and reusability. This work establishes a reliable and robust analytical platform for trace AFs detection in food commodities and proposes a generalizable covalent grafting strategy for the rational design of functional porous materials in food safety monitoring. • A β-CD modified fluorinated covalent triazine framework was developed for efficient aflatoxin extraction. • Extraction mechanism revealed by DFT calculations shows synergistic host-guest and polar interactions. • The coating exhibits high enrichment factors, excellent anti-interference ability, and outstanding reusability. • Method enables reliable detection of trace aflatoxins in complex cereal samples. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Food Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.foodchem.2025.146841
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Aflatoxins
        Type: general
      – SubjectFull: Cereal products
        Type: general
      – SubjectFull: Solid phase extraction
        Type: general
      – SubjectFull: Cyclodextrins
        Type: general
      – SubjectFull: Porous materials
        Type: general
      – SubjectFull: Food safety
        Type: general
      – SubjectFull: Density functional theory
        Type: general
      – SubjectFull: High performance liquid chromatography
        Type: general
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      – TitleFull: A β-cyclodextrin/fluorinated covalent triazine framework hybrid fiber for synergistic solidphase microextraction of aflatoxins in cereals.
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            NameFull: Pan, Lining
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            – D: 27
              M: 12
              Text: Dec2025:Part 3
              Type: published
              Y: 2025
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