NDLI: Facile synthesis of thiazole-functionalized magnetic microspheres for highly specific separation of heme proteins

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New Journal of Chemistry Vol - 41 Issue - 1

New Journal of Chemistry Vol -39

New Journal of Chemistry Vol -29

New Journal of Chemistry Vol -0

Facile synthesis of thiazole-functionalized magnetic microspheres for highly specific separation of heme proteins

Content Provider	Royal Society of Chemistry (RSC)
Author	Chu, Qiao Xi, Xingjun Wei, Yun Wang, Juanqiang Dong, Genlai Shao, Qian Wang, Binghai
Copyright Year	2017
Abstract	A thiazole group containing two kinds of heteroatoms N and S has a large conjugated π bond and strong electronic ability, and it easily binds with metal ions to form metal complexes. In this paper, thiazole as an affinity group was designed to achieve the selective adsorption of heme proteins which have an iron-containing heme group. Thiazole-functionalized magnetic microspheres (Fe3O4@SiO2@AT) were synthesized by immobilizing 2-aminothiazole onto the surface of aminopropyl modified magnetic microspheres through a crosslinking reaction in which glutaraldehyde was a crosslinking agent. The elemental analysis and thermogravimetric data confirmed and quantified the immobilization of the thiazole group. Due to the covalent coordination between the thiazole group (lone pair electrons of the N atom) and the iron ion in the heme group, Fe3O4@SiO2@AT exhibited a high binding capacity for hemoglobin (2.02 g g−1) and a relatively low binding capacity for other proteins (lysozyme as a model protein) without a heme group. Moreover, the whole separation process required only 15 minutes, which was favorable for the separation of unstable proteins. In addition, Fe3O4@SiO2@AT was successfully applied to selectively separate hemoglobin from a binary protein mixture and human blood samples. These results demonstrated that the microspheres had potential use in the separation of heme proteins.
Starting Page	747
Ending Page	754
Page Count	8
File Format	HTM / HTML PDF
ISSN	11440546
Volume Number	41
Issue Number	2
Journal	New Journal of Chemistry
DOI	10.1039/c6nj02755e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Lone pair Glutaraldehyde Aminothiazole Affinity group Selective adsorption Covalent bond Hemoglobin Ion Pi bond Thiazole Lysozyme Protein
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Catalysis

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