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Fabrication of Core-Shell Magnetic Molecularly Imprinted Nanospheres towards Hypericin via Click Polymerization

Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China
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Polymers 2019, 11(2), 313; https://doi.org/10.3390/polym11020313
Received: 6 January 2019 / Revised: 28 January 2019 / Accepted: 3 February 2019 / Published: 13 February 2019
(This article belongs to the Special Issue Molecular Imprinted Polymers: Challenges and Applications)
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Abstract

The core-shell structure molecularly imprinted magnetic nanospheres towards hypericin (Fe3O4@MIPs) were prepared by mercapto-alkyne click polymerization. The shape and size of nanospheres were characterized by dynamic light scattering (DLS) and transmission electron microscope (TEM). The nanospheres were analyzed by FTIR spectroscopy to verify the thiol-yne click reaction in the presence or absence of hypericin. The Brunauer–Emmet–Teller (BET) method was used for measuring the average pore size, pore volume and surface area. The Fe3O4@MIPs synthesized displayed a good adsorption capacity (Q = 6.80 µmol·g−1). In addition, so-prepared Fe3O4@MIPs showed fast mass transfer rates and good reusability. The method established for fabrication of Fe3O4@MIPs showed excellent reproducibility and has broad potential for the fabrication of other core-shell molecularly imprinted polymers (MIPs). View Full-Text
Keywords: surface molecular imprinting; hypericin; click polymerization; core-shell; magnetic nanospheres surface molecular imprinting; hypericin; click polymerization; core-shell; magnetic nanospheres
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Wang, X.; Pei, Y.; Hou, Y.; Pei, Z. Fabrication of Core-Shell Magnetic Molecularly Imprinted Nanospheres towards Hypericin via Click Polymerization. Polymers 2019, 11, 313.

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