Preparation of Fe3O4@graphene oxide core-shell magnetic particles for use in protein adsorption

被引：93

作者：

Wei, Hang ^{[1
]}

Yang, Wensheng ^{[1
]}

Xi, Qian ^{[1
]}

Chen, Xu ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 82卷

基金：

中国国家自然科学基金;

关键词：

Graphene oxide; Core-shell structure; Magnetic materials; Nanocomposites; Protein adsorption; GRAPHENE; MICROSPHERES; ALBUMIN;

D O I：

10.1016/j.matlet.2012.05.086

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Core-shell structure Fe3O4@graphene oxide (GO) submicron particles have been prepared via a simple electrostatic self-assembly process. The Fe3O4@GO particles had good dispersibility in water, high saturation magnetization and sensitive magnetic response. Bovine serum albumin (BSA) was chosen as model protein to study the efficacy of the Fe3O4@GO particles for protein adsorption. By virtue of the combined benefits of GO and Fe3O4, the Fe3O4@GO particles exhibited large adsorption capacity (181.8 mg/g) and fast adsorption kinetics for BSA The performance of GO as a shell material for core-shell magnetic composites was found to be superior to that of conventional shell materials such as polymers and silicon, thus demonstrating the great potential of the Fe3O4@GO particles for application in magnetic bioseparation. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

引用

页码：224 / 226

页数：3

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