Abstract
Monodisperse polystyrene (PS) microspheres encapsulating rare-earth ion doped β-NaYF4 upconversion fluorescent nanocrystals, with ca. 400 nm in diameter, have been synthesized successfully using a microemulsion polymerization method. Single PS microsphere contains more than 20 β-NaYF4 nanocrystals. The microspheres emit strong NIR-to visible upconversion fluorescence upon excitation by a 980nm laser. Use of this method could be extended to synthesis of PS microspheres encapsulating other functional nanocrystals.
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Qian, H.S., Li, Z.Q., Zhang, Y. (2008). A Facile Synthesis of Multicolor Polystyrene Microspheres Encapsulating Upconversion Fluorescent Nanoparticles. In: Abu Osman, N.A., Ibrahim, F., Wan Abas, W.A.B., Abdul Rahman, H.S., Ting, HN. (eds) 4th Kuala Lumpur International Conference on Biomedical Engineering 2008. IFMBE Proceedings, vol 21. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69139-6_23
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DOI: https://doi.org/10.1007/978-3-540-69139-6_23
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