Magnetic molecularly imprinted multishell particles for zearalenone recognition. (3rd February 2020)

• Record Type: Journal Article
• Authors: Piovesana, Susy; Capriotti, Anna Laura; Cavaliere, Chiara; Sparnacci, Katia; Gianotti, Valentina; Laus, Michele; Antonioli, Diego; Laganà, Aldo
• Is Part Of: Polymer. Volume 188(2020)
• Publication Date: 2020-02-03
• Subjects: Magnetic molecularly imprinted particles -- Zearalenone -- Multishell particles; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2019.122102
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: This paper deal with the synthesis and characterization of a new class of magnetic molecularly imprinted (MIP) particles, with selective recognition properties for Zearalenone (ZEN), an estrogenic mycotoxin. These particles present a multishell structure, comprising a magnetic core, constituted by spherical aggregates of magnetite nanoparticles (Fe3 O4 nanoparticles), covered by a thin silica layer and surrounded by a molecularly imprinted (MIP) polymer shell, obtained employing quercetin as the dummy template and 4-vinylpyridine as the functional monomer. A multistep synthetic procedure was developed leading to spherical particles with a mean diameter of approximately 900 nm and a high magnetic fraction. The MIP were tested for ZEN re-binding properties. ZEN-MIP material had 55-fold more affinity for ZEN than the corresponding non-imprinted (NIP) material, that highlighting their potential for ZEN concentration from complex food matrices. Graphical abstract: Image 1 Highlights: Magnetic MIP particles for selective recognition of Zearalenone were prepared. The particles present a mean diameter of about 900 nm and a multishell structure. ZEN-MIP material had 55-fold more affinity for ZEN than the corresponding NIP.