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Fabrication and estimation of Au-coated Fe3O4 nanocomposite powders for the separation and purification of biomolecules
- Authors
- Kim, Sanghyun; Kim, Min-jung; Choa, Yongho
- Issue Date
- Mar-2007
- Publisher
- Elsevier BV
- Keywords
- Au/Fe3O4 nanocomposite; surface plasmon resonance; zetapotential; separation and purification of biomolecules; glutathione
- Citation
- Materials Science and Engineering: A, v.449, pp.386 - 388
- Indexed
- SCIE
SCOPUS
- Journal Title
- Materials Science and Engineering: A
- Volume
- 449
- Start Page
- 386
- End Page
- 388
- ISSN
- 0921-5093
- Abstract
- Au and Fe3O4 nanoparticles were prepared by reduction and coprecipitation methods. The Au/Fe3O4 nanocomposite particles were prepared through the control of the surface charges, and glutathione (GSH) of a thiol group was used as a biomolecule. GSH immobilization onto Au/Fe3O4 was accomplished by simply mixing process. The nanoparticles were characterized by UV-vis spectroscopy: X-ray diffraction, transmission electron microscopy and vibrating sample magnetometry. The amount of immobilized GSH on the Au/Fe3O4 increased with increasing amount of coated Au nanoparticles. The possibility of Au/Fe3O4 nanocomposite particles for the application to the separation and purification of biomolecules by magnetic field was confirmed. (c) 2006 Elsevier B.V. All rights reserved.
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Related Researcher
- CHOA, YONG HO
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)