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Reference type: Journal
Authors: Qin YP, Jia C, He XW, Li WY, Zhang YK
Article Title: Thermosensitive Metal Chelation Dual-Template Epitope Imprinting Polymer Using Distillation-Precipitation Polymerization for Simultaneous Recognition of Human Serum Albumin and Transferrin.
Publication date: 2018
Journal: ACS Applied Materials & Interfaces
Volume: 10
Issue: (10)
Page numbers: 9060-9068.
DOI: 10.1021/acsami.8b00327

Abstract: A new type of thermosensitive dual-template epitope molecular imprinting polymer was prepared and coated on magnetic carbon nanotubes (MCNTs@D-EMIP) for simultaneous recognition of human serum albumin (HSA) and transferrin (Trf) via the strategies of dual-template epitope imprinting, metal chelation imprinting, and distillation-precipitation polymerization (DPP). C-terminal peptides of HSA and C-terminal peptides of Trf were selected as templates, zinc acrylate and N-isopropylacrylamide were used as functional monomers, and MCNTs@D-EMIP was prepared by the method of DPP. The two types of template epitopes were immobilized by metal chelation and six-membered ring formed with zinc acylate. MCNTs@D-EMIP was prepared in only 30 min, which was much shorter than other polymerization methods. The resultant MCNTs@D-EMIP showed excellent specific recognition ability toward HSA and Trf. The adsorption amounts of MCNTs@D-EMIP for HSA and Trf were 103.67 and 68.48 mg g-1 and the imprinting factors were 2.57 and 2.17, respectively. In addition, MCNTs@D-EMIP displayed a thermosensitive property to realize temperature-controlled recognition and release of target proteins. Furthermore, the results of high-performance liquid chromatography analysis proved that MCNTs@D-EMIP could be applied to specifically recognize two types of targets simultaneously in the biosample. The proposed strategy provided a preparation method for the thermosensitive dual-template epitope imprinting polymer via dual-template imprinting, metal chelation imprinting, and DPP
Template and target information: dual template, protein, peptide, epitope, human serum albumin, HSA, transferrin, Trf
Author keywords: Distillation-precipitation polymerization, dual-template epitope imprinting, metal chelation imprinting, molecular imprinting polymer, thermosensitive recognition

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