BioMed Research International

BioMed Research International / 2007 / Article
Special Issue

Biomedical Applications of Colloidal Nanocrystals

View this Special Issue

Research Article | Open Access

Volume 2007 |Article ID 052971 | https://doi.org/10.1155/2007/52971

Masanori Ando, Chunliang Li, Ping Yang, Norio Murase, "Blue-Emitting Small Silica Particles Incorporating ZnSe-Based Nanocrystals Prepared by Reverse Micelle Method", BioMed Research International, vol. 2007, Article ID 052971, 7 pages, 2007. https://doi.org/10.1155/2007/52971

Blue-Emitting Small Silica Particles Incorporating ZnSe-Based Nanocrystals Prepared by Reverse Micelle Method

Academic Editor: Marek Osinski
Received16 May 2007
Revised17 Dec 2007
Accepted24 Dec 2007
Published27 Feb 2008

Abstract

ZnSe-based nanocrystals (ca. 4-5 nm in diameter) emitting in blue region (ca. 445 nm) were incorporated in spherical small silica particles (20–40 nm in diameter) by a reverse micelle method. During the preparation, alkaline solution was used to deposit the hydrolyzed alkoxide on the surface of nanocrystals. It was crucially important for this solution to include Zn2+ ions and surfactant molecules (thioglycolic acid) to preserve the spectral properties of the final silica particles. This is because these substances in the solution prevent the surface of nanocrystals from deterioration by dissolution during processing. The resultant silica particles have an emission efficiency of 16% with maintaining the photoluminescent spectral width and peak wavelength of the initial colloidal solution.

References

  1. A. P. Alivisatos, “Perspectives on the physical chemistry of semiconductor nanocrystals,” Journal of Physical Chemistry, vol. 100, no. 31, pp. 13226–13239, 1996. View at: Publisher Site | Google Scholar
  2. M. Bruchez Jr., M. Moronne, P. Gin, S. Weiss, and A. P. Alivisatos, “Semiconductor nanocrystals as fluorescent biological labels,” Science, vol. 281, no. 5385, pp. 2013–2016, 1998. View at: Publisher Site | Google Scholar
  3. M. Han, X. Gao, J. Z. Su, and S. Nie, “Quantum-dot-tagged microbeads for multiplexed optical coding of biomolecules,” Nature Biotechnology, vol. 19, no. 7, pp. 631–635, 2001. View at: Publisher Site | Google Scholar
  4. W. C. W. Chan, D. J. Maxwell, X. Gao, R. E. Bailey, M. Han, and S. Nie, “Luminescent quantum dots for multiplexed biological detection and imaging,” Current Opinion in Biotechnology, vol. 13, no. 1, pp. 40–46, 2002. View at: Publisher Site | Google Scholar
  5. W. J. Parak, D. Gerion, T. Pellegrino et al., “Biological applications of colloidal nanocrystals,” Nanotechnology, vol. 14, no. 7, pp. R15–R27, 2003. View at: Publisher Site | Google Scholar
  6. X. Michalet, F. F. Pinaud, L. A. Bentolila et al., “Quantum dots for live cells, in vivo imaging, and diagnostics,” Science, vol. 307, no. 5709, pp. 538–544, 2005. View at: Publisher Site | Google Scholar
  7. N. P. Gaponik, D. V. Talapin, A. L. Rogach, and A. Eychmüller, “Electrochemical synthesis of CdTe nanocrystal/polypyrrole composites for optoelectronic applications,” Journal of Materials Chemistry, vol. 10, no. 9, pp. 2163–2166, 2000. View at: Publisher Site | Google Scholar
  8. S. Coe, W.-K. Woo, M. Bawendi, and V. Bulović, “Electroluminescence from single monolayers of nanocrystals in molecular organic devices,” Nature, vol. 420, no. 6917, pp. 800–803, 2002. View at: Publisher Site | Google Scholar
  9. Y. Mori, Y. Arao, K. Tsuchiya, and K. Shimamura, “Photoluminescence properties of ZnS nanoparticles prepared in clay suspension,” in Proceedings of the 58th Divisional Meeting on Colloid and Interface Chemistry, p. 300, Utsunomiya, Japan, September 2005. View at: Google Scholar
  10. D. Toomre and D. J. Manstein, “Lighting up the cell surface with evanescent wave microscopy,” Trends in Cell Biology, vol. 11, no. 7, pp. 298–303, 2001. View at: Publisher Site | Google Scholar
  11. Phosphor Research Society, Ed., Handbook of Phosphors, Ohmsha, Tokyo, Japan, 1987.
  12. B. O. Dabbousi, J. Rodriguez-Viejo, F. V. Mikulec et al., “(CdSe)ZnS core-shell quantum dots: synthesis and characterization of a size series of highly luminescent nanocrystallites,” Journal of Physical Chemistry B, vol. 101, no. 46, pp. 9463–9475, 1997. View at: Publisher Site | Google Scholar
  13. A. L. Rogach, L. Katsikas, A. Kornowski, D. S. Su, A. Eychmüller, and H. Weller, “Synthesis and characterization of thiol-stabilized CdTe nanocrystals,” Berichte der Bunsen-Gesellschaft-Physical Chemistry, vol. 100, pp. 1772–1778, 1996. View at: Google Scholar
  14. C. Li and N. Murase, “Surfactant-dependent photoluminescence of CdTe nanocrystals in aqueous solution,” Chemistry Letters, vol. 34, no. 1, pp. 92–93, 2005. View at: Publisher Site | Google Scholar
  15. N. Murase and M. Gao, “Preparation and photoluminescence of water-dispersible ZnSe nanocrystals,” Materials Letters, vol. 58, no. 30, pp. 3898–3902, 2004. View at: Publisher Site | Google Scholar
  16. C. Li, K. Nishikawa, M. Ando, H. Enomoto, and N. Murase, “Highly luminescent water-soluble ZnSe nanocrystals and their incorporation in a glass matrix,” Colloids and Surfaces A, vol. 294, no. 1–3, pp. 33–39, 2007. View at: Publisher Site | Google Scholar
  17. C. Li, K. Nishikawa, M. Ando, H. Enomoto, and N. Murase, “Blue-emitting type-II semiconductor nanocrystals with high efficiency prepared by aqueous method,” Chemistry Letters, vol. 36, no. 3, pp. 438–439, 2007. View at: Publisher Site | Google Scholar
  18. S. T. Selvan, C. Bullen, M. Ashokkumar, and P. Mulvaney, “Synthesis of tunable, highly luminescent QD-glasses through sol-gel processing,” Advanced Materials, vol. 13, no. 12-13, pp. 985–988, 2001. View at: Publisher Site | Google Scholar
  19. C. Bullen, P. Mulvaney, C. Sada, M. Ferrari, A. Chiasera, and A. Martucci, “Incorporation of a highly luminescent semiconductor quantum dot in ZrO2-SiO2 hybrid sol-gel glass film,” Journal of Materials Chemistry, vol. 14, no. 7, pp. 1112–1116, 2004. View at: Publisher Site | Google Scholar
  20. C. Li and N. Murase, “Synthesis of highly luminescent glasses incorporating CdTe nanocrystals through sol-gel processing,” Langmuir, vol. 20, no. 1, pp. 1–4, 2004. View at: Publisher Site | Google Scholar
  21. C. Li, M. Ando, and N. Murase, “Preparation and characterization of glass embedding photoluminescent CdTe nanocrystals,” Journal of Non-Crystalline Solids, vol. 342, no. 1-3, pp. 32–38, 2004. View at: Publisher Site | Google Scholar
  22. S. T. Selvan, C. Li, M. Ando, and N. Murase, “Formation of luminescent CdTe-silica nanoparticles through an inverse microemulsion technique,” Chemistry Letters, vol. 33, no. 4, pp. 434–435, 2004. View at: Publisher Site | Google Scholar
  23. P. Yang, M. Ando, and N. Murase, “Encapsulation of emitting CdTe QDs within silica beads to retain initial photoluminescence efficiency,” Journal of Colloid and Interface Science, vol. 316, no. 2, pp. 420–427, 2007. View at: Publisher Site | Google Scholar
  24. P. Yang, C. Li, and N. Murase, “Highly photoluminescent multilayer QD-glass films prepared by LbL self-assembly,” Langmuir, vol. 21, no. 19, pp. 8913–8917, 2005. View at: Publisher Site | Google Scholar
  25. P. Yang and N. Murase, “Intensely emitting CdTe nanocrystals retained initial photoluminescence efficiency in sol-gel derived Si1xZrxO2 glass,” Applied Physics A, vol. 89, no. 1, pp. 189–193, 2007. View at: Publisher Site | Google Scholar
  26. D. Gerion, F. Pinaud, S. C. Williams et al., “Synthesis and properties of biocompatible water-soluble silica-coated CdSe/ZnS semiconductor quantum dots,” Journal of Physical Chemistry B, vol. 105, no. 37, pp. 8861–8871, 2001. View at: Publisher Site | Google Scholar
  27. Y. Chan, J. P. Zimmer, M. Stroh, J. S. Steckel, R. K. Jain, and M. G. Bawendi, “Incorporation of luminescent nanocrystals into monodisperse core-shell silica microspheres,” Advanced Materials, vol. 16, no. 23-24, pp. 2092–2097, 2004. View at: Publisher Site | Google Scholar
  28. S. T. Selvan, T. T. Tan, and J. Y. Ying, “Robust, non-cytotoxic, silica-coated CdSe quantum dots with efficient photoluminescence,” Advanced Materials, vol. 17, no. 13, pp. 1620–1625, 2005. View at: Publisher Site | Google Scholar
  29. Y. Yang and M. Gao, “Preparation of fluorescent SiO2 particles with single CdTe nanocrystal cores by the reverse microemulsion method,” Advanced Materials, vol. 17, no. 19, pp. 2354–2357, 2005. View at: Publisher Site | Google Scholar
  30. M. Darbandi, R. Thomann, and T. Nann, “Single quantum dots in silica spheres by microemulsion synthesis,” Chemistry of Materials, vol. 17, no. 23, pp. 5720–5725, 2005. View at: Publisher Site | Google Scholar
  31. X. Zhong, M. Han, Z. Dong, T. J. White, and W. Knoll, “Composition-tunable ZnxCd1xSe nanocrystals with high luminescence and stability,” Journal of the American Chemical Society, vol. 125, no. 28, pp. 8589–8594, 2003. View at: Publisher Site | Google Scholar
  32. R. Li, J. Lee, D. Kang, Z. Luo, M. Aindow, and F. Papadimitrakopoulos, “Band-edge photoluminescence recovery from zinc-blende CdSe nanocrystals synthesized at room temperature,” Advanced Functional Materials, vol. 16, no. 3, pp. 345–350, 2006. View at: Publisher Site | Google Scholar
  33. Q. Zhao and W. Xu, “One-step preparation of ZnSe nanorod aggregates,” Chemistry Letters, vol. 35, no. 10, pp. 1186–1187, 2006. View at: Publisher Site | Google Scholar
  34. D. F. Eaton, “Reference materials for fluorescence measurement,” Pure and Applied Chemistry, vol. 60, no. 7, pp. 1107–1114, 1988. View at: Publisher Site | Google Scholar

Copyright © 2007 Masanori Ando et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


More related articles

 PDF Download Citation Citation
 Order printed copiesOrder
Views225
Downloads524
Citations

Related articles

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.