Abstract
We focus on the inorganic nanophosphor of YAG:Ce3+ nanoparticles as an alternative fluorescent probe instead of organic dyes for biological application. YAG:Ce3+ nanoparticles have the green emission at 530 nm under the excitation of blue light at 450 nm. Conventional biochemical equipments for organic dyes can be used for YAG:Ce3+ nanoparticles. SH groups were introduced by surface modification of YAG:Ce3+ nanoparticles with 3-mercaptopropyl trimethoxy silane, and were characterized by X-ray fluorescence analysis, FT-IR, and Ellman method. We demonstrated tagging avidin-immobilized agarose gel beads with biotinylated-YAG:Ce3+ nanoparticles, and tagging rabbit IgG-immobilized agarose gel beads with antirabbit IgG-immobilized YAG:Ce3+ nanoparticles.
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Abbreviations
- YAG:Ce3+ :
-
Yttrium aluminum garnet doped with Ce3+
- APTMS:
-
3-Aminopropyl trimethoxy silane
- MPTMS:
-
3-Mercaptopropyl trimethoxy silane
- 1,4-BD:
-
1,4-Butanediol
- EMCS:
-
n-(6-Maleimidocaproyloxy) sulfosuccinimide
- DTNB:
-
5,5′-Dithio-bis-2-nitrobenzoic acid
- TNB:
-
5-Thio-2-nitrobenzoic acid
- XRF:
-
X-ray fluorescence analysis
- UV–vis:
-
Ultraviolet–visible
- PL:
-
Photoluminescence
- PLE:
-
Photoluminescence excitation
- DLS:
-
Dynamic light scattering method
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Tsukamoto, A., Isobe, T. Characterization and biological application of YAG:Ce3+ nanophosphor modified with mercaptopropyl trimethoxy silane. J Mater Sci 44, 1344–1350 (2009). https://doi.org/10.1007/s10853-008-3012-4
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DOI: https://doi.org/10.1007/s10853-008-3012-4