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author:

Lin, Zian (Lin, Zian.) [1] (Scholars:林子俺) | Yang, Fan (Yang, Fan.) [2] | He, Xiwen (He, Xiwen.) [3] | Zhao, Xiaomiao (Zhao, Xiaomiao.) [4] | Zhang, Yukui (Zhang, Yukui.) [5]

Indexed by:

EI Scopus SCIE

Abstract:

A novel type of macroporous molecularly imprinted hybrid silica monolithic column was first developed for recognition of proteins. The macroporous silica-based monolithic skeleton was synthesized in a 4.6 mm i.d. stainless steel column by a mild sol-gel process with methyltrimethoxysilane (MTMS) as a sole precursor, and then vinyl groups were introduced onto the surface of the silica skeleton by chemical modification of gamma-methacryloxypropyltrimethoxysilane (gamma-MAPS). Subsequently, the molecularly imprinted polymer (MIP) coating was copolymerized and anchored onto the surface of the silica monolith. Bovine serum albumin (BSA) and lysozyme (Lyz), which differ greatly in molecular size, isoelectric point, and charge, were representatively selected for imprinted templates to evaluate recognition property of the hybrid silica-based MIP monolith. Some important factors, such as template-monomer molar ratio, total monomer concentration and crosslinking density, were systematically investigated. Under the optimum conditions, the obtained hybrid silica-based MIP monolith showed higher binding affinity for template than its corresponding non-imprinted (NIP) monolith. The imprinted factor (IF) for BSA and Lyz reached 9.07 and 6.52, respectively. Moreover, the hybrid silica-based MIP monolith displayed favorable binding characteristics for template over competitive protein. Compared with the imprinted silica beads for stationary phase and in situ organic polymer-based hydrogel MIP monolith, the hybrid silica MIP monolith exhibited higher recognition, stability and lifetime. (C) 2009 Elsevier B.V. All rights reserved.

Keyword:

Hybrid silica-based monolith Molecular imprinting Organic polymer-based monolith Protein

Community:

  • [ 1 ] [Lin, Zian]Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China
  • [ 2 ] [Yang, Fan]Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China
  • [ 3 ] [He, Xiwen]Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China
  • [ 4 ] [Zhao, Xiaomiao]Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China
  • [ 5 ] [Zhang, Yukui]Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China
  • [ 6 ] [Zhang, Yukui]Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116023, Peoples R China
  • [ 7 ] [Lin, Zian]Fuzhou Univ, Minist Educ, Key Lab Anal & Detect Food Safety, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • 林子俺

    [Lin, Zian]Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China

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Source :

JOURNAL OF CHROMATOGRAPHY A

ISSN: 0021-9673

Year: 2009

Issue: 49

Volume: 1216

Page: 8612-8622

4 . 1 0 1

JCR@2009

3 . 8 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 88

SCOPUS Cited Count: 93

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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