Incorporation of Iron Oxide Nanoparticles and Quantum Dots into Silica Microspheres

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Incorporation of Iron Oxide Nanoparticles and Quantum Dots into Silica Microspheres

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Title: Incorporation of Iron Oxide Nanoparticles and Quantum Dots into Silica Microspheres
Author: Insin, Numpon; Tracy, Joseph B.; Lee, Hakho; Zimmer, John P.; Westervelt, Robert M.; Bawendi, Moungi G.

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Citation: Insin, Numpon, Joseph B. Tracy, Hakho Lee, John P. Zimmer, Robert M. Westervelt, and Moungi G. Bawendi. 2008. Incorporation of iron oxide nanoparticles and quantum dots into silica microspheres. ACS Nano 2(2): 197-202.
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Abstract: We describe the synthesis of magnetic and fluorescent silica microspheres fabricated by incorporating maghemite (γ-Fe2O3) nanoparticles (MPs) and CdSe/CdZnS core/shell quantum dots (QDs) into a silica shell around preformed silica microspheres. The resultant 500 nm microspheres have a narrow size distribution and show uniform incorporation of QDs and MPs into the shell. We have demonstrated manipulation of these microspheres using an external magnetic field with real-time fluorescence microscopy imaging.
Published Version: doi:10.1021/nn700344x
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4728507
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