Ratiometric fluorescence sensing of besifloxacin based on oxygen-doped g-C3N4-MOF composite interface.

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Title: Ratiometric fluorescence sensing of besifloxacin based on oxygen-doped g-C3N4-MOF composite interface.
Authors: Zhang, Min1,2 (AUTHOR) minzhang@163.com, Huang, Chenyang1 (AUTHOR) chenyanghuang@163.com, He, Chao2 (AUTHOR) chaohe@163.com, Zhang, Xing1 (AUTHOR) zhangxing@njnu.edu.cn, Zheng, Jie1 (AUTHOR) 90913@njnu.edu.cn, Lin, Lei2,3 (AUTHOR) leilin@njnu.edu.cn
Source: Research on Chemical Intermediates. Jun2025, Vol. 51 Issue 6, p3425-3437. 13p.
Subjects: Pollutants, Complex matrices, Environmental monitoring, Fluorescence, Doping agents (Chemistry), Nitrides
Abstract: Graphite carbon nitride (g-C3N4) has emerged as a promising candidate for fluorescence sensing applications due to its unique photo-physical properties. Nevertheless, the practical implementation of g-C3N4-based probes has been significantly constrained by their inherent limitations, particularly low quantum yield and insufficient recognition specificity. Here, we report an oxygen-doped g-C3N4-MOF composite (OCNS@1M) that demonstrates enhanced fluorescence emission characteristics and aqueous dispersibility. A remarkable enhancement in quantum yield from 13% for pristine OCNS to 93% for the optimized OCNS@1M composite were achieved. The implementation of an OCNS@1M-based ratiometric fluorescence sensing platform effectively mitigated interference signals, thereby significantly improving the reliability of detection. This advancement enabled the sensitive quantification of besifloxacin residues in complex environmental matrices. This study provides substantial potential for constructing ratiometric fluorescence sensors based on g-C3N4-MOF probes for environmental pollutant monitoring. [ABSTRACT FROM AUTHOR]
Copyright of Research on Chemical Intermediates is the property of Springer Nature 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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  Data: Ratiometric fluorescence sensing of besifloxacin based on oxygen-doped g-C<subscript>3</subscript>N<subscript>4</subscript>-MOF composite interface.
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Min%22">Zhang, Min</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> minzhang@163.com</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Chenyang%22">Huang, Chenyang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chenyanghuang@163.com</i><br /><searchLink fieldCode="AR" term="%22He%2C+Chao%22">He, Chao</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> chaohe@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Xing%22">Zhang, Xing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhangxing@njnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zheng%2C+Jie%22">Zheng, Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 90913@njnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Lin%2C+Lei%22">Lin, Lei</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> leilin@njnu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Research+on+Chemical+Intermediates%22">Research on Chemical Intermediates</searchLink>. Jun2025, Vol. 51 Issue 6, p3425-3437. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink><br /><searchLink fieldCode="DE" term="%22Complex+matrices%22">Complex matrices</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+monitoring%22">Environmental monitoring</searchLink><br /><searchLink fieldCode="DE" term="%22Fluorescence%22">Fluorescence</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrides%22">Nitrides</searchLink>
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  Data: Graphite carbon nitride (g-C3N4) has emerged as a promising candidate for fluorescence sensing applications due to its unique photo-physical properties. Nevertheless, the practical implementation of g-C3N4-based probes has been significantly constrained by their inherent limitations, particularly low quantum yield and insufficient recognition specificity. Here, we report an oxygen-doped g-C3N4-MOF composite (OCNS@1M) that demonstrates enhanced fluorescence emission characteristics and aqueous dispersibility. A remarkable enhancement in quantum yield from 13% for pristine OCNS to 93% for the optimized OCNS@1M composite were achieved. The implementation of an OCNS@1M-based ratiometric fluorescence sensing platform effectively mitigated interference signals, thereby significantly improving the reliability of detection. This advancement enabled the sensitive quantification of besifloxacin residues in complex environmental matrices. This study provides substantial potential for constructing ratiometric fluorescence sensors based on g-C3N4-MOF probes for environmental pollutant monitoring. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Research on Chemical Intermediates is the property of Springer Nature 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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        Value: 10.1007/s11164-025-05589-2
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 3425
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      – SubjectFull: Pollutants
        Type: general
      – SubjectFull: Complex matrices
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      – SubjectFull: Environmental monitoring
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      – SubjectFull: Fluorescence
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      – SubjectFull: Doping agents (Chemistry)
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      – SubjectFull: Nitrides
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      – TitleFull: Ratiometric fluorescence sensing of besifloxacin based on oxygen-doped g-C3N4-MOF composite interface.
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              M: 06
              Text: Jun2025
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              Y: 2025
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