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Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers

Chrysin is a natural bioactive molecule with various groups, and it has been a challenge to separate and enrich chrysin from natural products. Molecularly imprinted polymers have been widely used in the extraction of natural products, but the number and type of functional monomers limits the separat...

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Detalles Bibliográficos
Autores principales: Li, Long, Li, Lanfu, Cheng, Gege, Wei, Sentao, Wang, Yaohui, Huang, Qin, Wu, Wei, Liu, Xiuyu, Chen, Guoning
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9317971/
https://www.ncbi.nlm.nih.gov/pubmed/35890545
http://dx.doi.org/10.3390/polym14142771
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author Li, Long
Li, Lanfu
Cheng, Gege
Wei, Sentao
Wang, Yaohui
Huang, Qin
Wu, Wei
Liu, Xiuyu
Chen, Guoning
author_facet Li, Long
Li, Lanfu
Cheng, Gege
Wei, Sentao
Wang, Yaohui
Huang, Qin
Wu, Wei
Liu, Xiuyu
Chen, Guoning
author_sort Li, Long
collection PubMed
description Chrysin is a natural bioactive molecule with various groups, and it has been a challenge to separate and enrich chrysin from natural products. Molecularly imprinted polymers have been widely used in the extraction of natural products, but the number and type of functional monomers limits the separation effect. The synergistic action of multiple functional monomers can improve the separation effect. In this paper, molecularly imprinted polymers (Bi-MIPs) were prepared using methacrylic acid and acrylamide as binary functional monomers for the separation and enrichment of chrysin. The Bi-MIPs were characterized using thermogravimetric analyzer (TGA), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). The performances of Bi-MIPs were assessed, which included adsorption isotherms, selective recognition and adsorption kinetics. The experimental results show that Bi-MIPs are shaped as a uniform sphere with an abundant pocket structure on its surface. The adsorption of chrysin on the Bi-MIPs followed a pseudo-second-order and adapted Langmuir–Freundlich isotherm models. The adsorption performance of the Bi-MIPs was determined at different temperatures, and the Bi-MIPs showed excellent adsorption performance at 30 °C. The initial decomposition temperature of the Bi-MIPs was 220 °C. After five times of adsorption and desorption, the adsorption performance of the Bi-MIPs decreased by only 7%. In contrast with single functional monomer molecularly imprinted polymers (Si-MIPs), the Bi-MIPs showed excellent specificity, with an imprinting factor of 1.54. The Bi-MIPs are promising materials in the separation and enrichment of chrysin for their high adsorption capacity, low cost and being environmentally friendly.
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spelling pubmed-93179712022-07-27 Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers Li, Long Li, Lanfu Cheng, Gege Wei, Sentao Wang, Yaohui Huang, Qin Wu, Wei Liu, Xiuyu Chen, Guoning Polymers (Basel) Article Chrysin is a natural bioactive molecule with various groups, and it has been a challenge to separate and enrich chrysin from natural products. Molecularly imprinted polymers have been widely used in the extraction of natural products, but the number and type of functional monomers limits the separation effect. The synergistic action of multiple functional monomers can improve the separation effect. In this paper, molecularly imprinted polymers (Bi-MIPs) were prepared using methacrylic acid and acrylamide as binary functional monomers for the separation and enrichment of chrysin. The Bi-MIPs were characterized using thermogravimetric analyzer (TGA), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). The performances of Bi-MIPs were assessed, which included adsorption isotherms, selective recognition and adsorption kinetics. The experimental results show that Bi-MIPs are shaped as a uniform sphere with an abundant pocket structure on its surface. The adsorption of chrysin on the Bi-MIPs followed a pseudo-second-order and adapted Langmuir–Freundlich isotherm models. The adsorption performance of the Bi-MIPs was determined at different temperatures, and the Bi-MIPs showed excellent adsorption performance at 30 °C. The initial decomposition temperature of the Bi-MIPs was 220 °C. After five times of adsorption and desorption, the adsorption performance of the Bi-MIPs decreased by only 7%. In contrast with single functional monomer molecularly imprinted polymers (Si-MIPs), the Bi-MIPs showed excellent specificity, with an imprinting factor of 1.54. The Bi-MIPs are promising materials in the separation and enrichment of chrysin for their high adsorption capacity, low cost and being environmentally friendly. MDPI 2022-07-06 /pmc/articles/PMC9317971/ /pubmed/35890545 http://dx.doi.org/10.3390/polym14142771 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Long
Li, Lanfu
Cheng, Gege
Wei, Sentao
Wang, Yaohui
Huang, Qin
Wu, Wei
Liu, Xiuyu
Chen, Guoning
Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers
title Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers
title_full Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers
title_fullStr Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers
title_full_unstemmed Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers
title_short Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers
title_sort study of the preparation and properties of chrysin binary functional monomer molecularly imprinted polymers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9317971/
https://www.ncbi.nlm.nih.gov/pubmed/35890545
http://dx.doi.org/10.3390/polym14142771
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