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Reference type: Journal
Authors: Cheng WX, Fan FF, Zhang Y, Pei ZC, Wang WJ, Pei YX
Article Title: A Facile Approach for Fabrication of Core-Shell Magnetic Molecularly Imprinted Nanospheres towards Hypericin.
Publication date: 2017
Journal: Polymers
Volume: 9
Issue: (4)
Page numbers: ArticleNo135.
DOI: 10.3390/polym9040135
Alternative URL: http://www.mdpi.com/2073-4360/9/4/135

Abstract: By taking advantage of the self-polymerization of dopamine on the surface of magnetic nanospheres in weak alkaline Tris-HCl buffer solution, a facile approach was established to fabricate core-shell magnetic molecularly imprinted nanospheres towards hypericin (Fe3O4@PDA/Hyp NSs), via a surface molecular imprinting technique. The Fe3O4@PDA/Hyp NSs were characterized by FTIR, TEM, DLS, and BET methods, respectively. The reaction conditions for adsorption capacity and selectivity towards hypericin were optimized, and the Fe3O4@PDA/Hyp NSs synthesized under the optimized conditions showed a high adsorption capacity (Q = 18.28 mg/g) towards hypericin. The selectivity factors of Fe3O4@PDA/Hyp NSs were about 1.92 and 3.55 towards protohypericin and emodin, respectively. In addition, the approach established in this work showed good reproducibility for fabrication of Fe3O4@PDA/Hyp
Template and target information: hypericin, Hyp
Author keywords: surface molecular imprinting, Hypericin, magnetic nanospheres, dopamine, Core-shell


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