期刊
MATERIALS LETTERS
卷 82, 期 -, 页码 224-226出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2012.05.086
关键词
Graphene oxide; Core-shell structure; Magnetic materials; Nanocomposites; Protein adsorption
资金
- National Basic Research Program of China [2011CBA00508]
- National Natural Science Foundation of China [21175009]
- State Key Laboratory of Electroanalytical Chemistry, CIAC, CAS [SKLEAC201203]
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.
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