DICP OpenIR
Subject Area物理化学
The Synthesis of Magnetic Lysozyme-Imprinted Polymers by Means of Distillation-Precipitation Polymerization for Selective Protein Enrichment
Cao, Jiali1,3; Zhang, Xihao1,3; He, Xiwen1; Chen, Langxing1; Zhang, Yukui1,2,3; JialiCao
KeywordImprinting Magnetic Properties Nanoparticles Polymerization Proteins
Source PublicationCHEMISTRY-AN ASIAN JOURNAL
2014-02-01
DOI10.1002/asia.201300937
Volume9Issue:2Pages:526-533
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordSOLID-PHASE EXTRACTION ; HISTIDINE-TAGGED PROTEINS ; TOF-MS ANALYSIS ; RIBONUCLEASE-A ; SUBMICROMETER PARTICLES ; HIGHLY EFFICIENT ; AQUEOUS-MEDIA ; NANOPARTICLES ; MICROSPHERES ; RECOGNITION
AbstractA protein imprinting approach for the synthesis of core-shell structure nanoparticles with a magnetic core and molecularly imprinted polymer (MIP) shell was developed using a simple distillation-precipitation polymerization method. In this work, Fe3O4 magnetic nanoparticles were first synthesized through a solvothermal method and then were conveniently surface-modified with 3-(methacryloyloxy)propyltrimethoxylsilane as anchor molecules to donate vinyl groups. Next a high-density MIP shell was coated onto the surface of the magnetic nanoparticles by the copolymerization of functional monomer acrylamide (AAm), cross-linking agent N,N-methylenebisacrylamide (MBA), the initiator azodiisobutyronitrile (AIBN), and protein in acetonitrile heated at reflux. The morphology, adsorption, and recognition properties of the magnetic molecularly imprinted nanoparticles were investigated by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), vibrating sample magnetometer (VSM), and rebinding experiments. The resulting MIP showed a high adsorption capacity (104.8mgg(-1)) and specific recognition (imprinting factor=7.6) to lysozyme (Lyz). The as-prepared Fe3O4@Lyz-MIP nanoparticles with a mean diameter of 320nm were coated with an MIP shell that was 20nm thick, which enabled Fe3O4@Lyz-MIP to easily reach adsorption equilibrium. The high magnetization saturation (40.35emug(-1)) endows the materials with the convenience of magnetic separation under an external magnetic field and allows them to be subsequently reused. Furthermore, Fe3O4@Lyz-MIP could selectively extract a target protein from real egg-white samples under an external magnetic field.
Language英语
WOS IDWOS:000331088600020
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/144456
Collection中国科学院大连化学物理研究所
Corresponding AuthorJialiCao
Affiliation1.Nankai Univ, Dept Chem, State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Synerget Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300071, Peoples R China
Recommended Citation
GB/T 7714
Cao, Jiali,Zhang, Xihao,He, Xiwen,et al. The Synthesis of Magnetic Lysozyme-Imprinted Polymers by Means of Distillation-Precipitation Polymerization for Selective Protein Enrichment[J]. CHEMISTRY-AN ASIAN JOURNAL,2014,9(2):526-533.
APA Cao, Jiali,Zhang, Xihao,He, Xiwen,Chen, Langxing,Zhang, Yukui,&JialiCao.(2014).The Synthesis of Magnetic Lysozyme-Imprinted Polymers by Means of Distillation-Precipitation Polymerization for Selective Protein Enrichment.CHEMISTRY-AN ASIAN JOURNAL,9(2),526-533.
MLA Cao, Jiali,et al."The Synthesis of Magnetic Lysozyme-Imprinted Polymers by Means of Distillation-Precipitation Polymerization for Selective Protein Enrichment".CHEMISTRY-AN ASIAN JOURNAL 9.2(2014):526-533.
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