Incorporation of Iron Oxide Nanoparticles and Quantum Dots into Silica Microspheres
ACS Nano2008Vol. 2(2), pp. 197–202
Citations Over TimeTop 1% of 2008 papers
Abstract
We describe the synthesis of magnetic and fluorescent silica microspheres fabricated by incorporating maghemite (gamma-Fe2O3) nanoparticles (MPs) and CdSe/CdZnS core/shell quantum dots (QDs) into a silica shell around preformed silica microspheres. The resultant approximately 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.
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