Journal
CHINESE CHEMICAL LETTERS
Volume 20, Issue 8, Pages 969-972Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2009.03.038
Keywords
Nanocomposites; Core-shell structure; Magnetic nanoparticles; Fluorescence
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Funding
- National Natural Science Foundation of China [60571031, 60501009, 30870679]
- National Basic Research Program of China [2006CB933206, 2006CB705606]
- Open Project Foundation of Laboratory of Solid State Microstructures of Nanjing University
- New Century Excellent Talents in University
- Chinese Ministry of Education
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This paper describes the formation of magnetic and fluorescent nanocomposite particles which consist of superparamagnetic Fe3O4 core, SiO2 shell and organic dye (FITC) coating layer on their surface. The obtained nanocomposites possess typical superparamagnetism and exhibit clear green fluorescence image. And their fluorescence emission is pH-dependent, which would be applied to pH sensing. (C) 2009 Yu Zhang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
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