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Article Abstract
Widespread misuse of tetracycline antibiotics (TCs) poses a serious risk to ecological stability and public health, and advanced methods are needed for monitoring of TCs in food and water environments. Here, a high entropy metal organic framework (HE-MOF) was constructed for simultaneous TC extraction and visual detection. The multimetallic-coordinated HE-MOF featured a unique microporous architecture and high surface area, providing abundant binding sites for TC. Based on the enhanced enzyme catalytic activity of HE-MOF by TC, a new method integrating sample pretreatment and detection was designed. The constructed colorimetric sensor showed good linearity within the 50-1000 nM TC concentration range and the LOD was 10.26 nM. In addition, a portable cellulose acetate (CA) composite membrane was constructed to realize the rapid qualitative and semi-quantitative detection of TC. In summary, this work provides a paradigm for designing multi-functional MOFs and bridges the gap between nanozyme research and practical food/environmental monitoring.
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| http://dx.doi.org/10.1016/j.foodchem.2025.146148 | DOI Listing |
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