Fabrication of magnetic hydrophilic imprinted polymers via two-step immobilization approach for targeted detecting bisphenol A.

J Chromatogr A

Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding 071002, China; State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China. Electronic address:

Published: August 2024

AI Article Synopsis

  • Researchers developed magnetic molecularly imprinted polymers (MMIPs) using modified β-cyclodextrin as a functional monomer, which improves selectivity for trace pollutants like bisphenol A (BPA) in complex samples.
  • MMIPs were created with FeO nanoparticles and demonstrated high crystallinity, excellent adsorption capacity, a quick rebinding rate, and strong reusability.
  • The study highlights the use of MMIPs in conjunction with magnetic solid-phase extraction and advanced detection methods, offering new strategies for effectively monitoring environmental pollutants in challenging matrices like water and milk.

Article Abstract

Molecularly imprinted polymer with water-compatibility for effective separation and enrichment of targeted trace pollutants from complicated matrix has captured extensive attention in terms of their high selectivity and matrix compatibility. This study focuses on modified β-cyclodextrin is used as a hydrophilic functional monomer to develop magnetic molecularly imprinted polymers (MMIPs). MMIPs were prepared using FeO nanoparticles as carriers and bisphenol A (BPA) as templates using a two-step fixation strategy and surface imprinting technology. The structural characteristic and binding properties of the prepared MMIPs were thoroughly studied. The MMIPs exhibited high crystallinity, high adsorption capacity, fast rebinding rate, remarkable selectivity and distinguish reusability. In addition, through magnetic solid-phase extraction separation technology and high-performance liquid chromatography ultraviolet quantitative detection technology, MMIPs are used for selective enrichment and detection of BPA in complex media such as environmental water and milk. This work provides a new route to construct the hydrophilic molecularly imprinted materials and a new sight on developing more effective sample pretreatment strategies for monitoring targeted pollution in complicated aqueous media.

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http://dx.doi.org/10.1016/j.chroma.2024.465032DOI Listing

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