Silica-coated nanocomposites of magnetic nanoparticles and quantum dots |
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Authors: | Yi Dong Kee Selvan S Tamil Lee Su Seong Papaefthymiou Georgia C Kundaliya Darshan Ying Jackie Y |
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Affiliation: | Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669. |
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Abstract: | Quantum dots (QDs) and magnetic nanoparticles (MPs) are of interest for biological imaging, drug targeting, and bioconjugation because of their unique optoelectronic and magnetic properties, respectively. To provide for water solubility and biocompatibility, QDs and MPs were encapsulated within a silica shell using a reverse microemulsion synthesis. The resulting SiO2/MP-QD nanocomposite particles present a unique combination of magnetic and optical properties. Their nonporous silica shell allows them to be surface modified for bioconjugation in various biomedical applications. |
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