A spatially modified 4-APM / Zr-MOF / PET nanoporous sensor, its fabrication method and application

By immobilizing Zr-MOF within the nanopores of a PET membrane and chemically grafting and modifying probe 4-APM, the complexity and stability issues of existing Con A detection methods are resolved, achieving highly selective and rapid-response Con A detection suitable for food safety and environmental monitoring.

CN122306906APending Publication Date: 2026-06-30CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Filing Date
2026-05-29
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing Con A detection methods are complex to operate, susceptible to interference, and have long response times, making it difficult to meet the needs of rapid detection. Furthermore, the detection systems lack stability, which affects their practical application in food safety monitoring and environmental monitoring.

Method used

A 4-APM/Zr-MOF/PET nanopore sensor based on spatial modification was adopted. By immobilizing Zr-MOF in the nanopores of the PET membrane and chemically grafting and modifying the probe 4-APM, more active sites are provided by the porous structure and stereomodification of Zr-MOF, achieving high selectivity and sensitivity for Con A detection.

Benefits of technology

It achieves highly selective, highly sensitive, rapid, and stable detection of Con A, with strong anti-interference capabilities, and is suitable for food safety monitoring and environmental monitoring.

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Abstract

This invention discloses a spatially modified 4-APM / Zr-MOF / PET nanoporous sensor, its fabrication method, and its application, belonging to the field of sensor fabrication technology. The sensor includes a PET film, a Zr-MOF, and a probe 4-APM; the PET film is etched with a bullet-shaped nanoporous structure; the Zr-MOF is complexed within the bullet-shaped nanoporous structure of the PET film, and the probe 4-APM is coupled to the Zr-MOF. The sensor of this invention utilizes the large specific surface area and porous structure of MOFs to serve as a substrate for probe fixation. Combined with the functional probe 4-APM and the special nanoporous structure, the complexation reaction between 4-APM and Con A amplifies the change in current signal, achieving rapid and stable detection of Con A.
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