Comparison of Eu(NO3)3 and Eu(acac)3 precursors for doping luminescent silica nanoparticles
Source abstract
Abstract
In this study, we report the comparison between Eu3+-doped silica nanoparticles synthesized by Stober method using Eu(NO3)3 or Eu(acac)3 as precursors. The impact of different europium species on the properties of the final silica nanospheres is investigated in details in terms of size, morphology, reachable doping amount, and luminescence efficiency. Moreover, the results obtained for different thermal treatments are presented and discussed. It is shown that the organic complex modify the silica growing process, leading to bigger and irregular nanoparticles (500–800 nm) with respect to the perfectly spherical ones (400 nm) obtained by the nitrate salt, but their luminescence intensity and lifetime is significantly higher when 800–900 °C annealing is performed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Quantum Dots Synthesis And Properties · Carbon and Quantum Dots Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
Show source-provided references
1. Bagwe RP, Hiliard LR, Tan W (2006) Surface modification of silica nanoparticles to reduce aggregation and nonspecific binding. Langmuir 22:4357–4362. doi: 10.1021/la052797j10.1021/la052797j ↗
2. Chan Y, Zimmer JP, Stroh M, Steckel JS, Jain RK, Bawendi MG (2004) Incorporation of luminescent nanocrystals into monodisperse core–shell silica microspheres. Adv Mater 16:2092–2097. doi: 10.1002/adma.20040023710.1002/adma.200400237 ↗
3. De G, Karmakar B, Ganguli D (2000) Hydrolysis-condensation reactions of TEOS in the presence of acetic acid leading to the generation of glass-like silica microspheres in solution at room temperature. J Mater Chem 10:2289–2293. doi: 10.1039/b003221m10.1039/b003221m ↗
4. de Dood MJA, Berkhout B, van Kats CM, Polman A, van Blaaderen A (2002) Acid-based synthesis of monodisperse rare-earth-doped colloidal SiO2 spheres. Chem Mater 14:2849–2853. doi: 10.1021/cm021159910.1021/cm0211599 ↗
5. Enrichi F (2008) Luminescent amino-functionalized or erbium-doped silica spheres for biological applications. Ann N Y Acad Sci 1103:262–266. doi: 10.1196/annals.1430.03010.1196/annals.1430.030 ↗
6. Enrichi F, Riccò R, Parma A, Riello P, Benedetti A (2008) Synthesis and characterization of monodisperse Eu-doped luminescent silica nanospheres for biological applications. Proc SPIE 6991:69912E1–69912E8. doi: 10.1117/12.78150410.1117/12.781504 ↗
7. Jin Y, Kannan S, Wu M, Zhao JX (2007) Toxicity of luminescent silica nanoparticles to living cells. Chem Res Toxicol 20:1126–1133. doi: 10.1021/tx700195910.1021/tx7001959 ↗
8. Liu G, Jacquier B (2005) Spectroscopic properties of rare earths in optical materials. Springer, Berlin
9. Medintz IL, Uyeda HT, Goldman EL, Mattoussi H (2005) Quantum dot bioconjugates for imaging, labelling and sensing. Nat Mater 6:435–446. doi: 10.1038/nmat139010.1038/nmat1390 ↗
10. Moran CE, Hale GD, Halas NJ (2001) Synthesis and characterization of lanthanide-doped silica microspheres. Langmuir 17:8376–8379. doi: 10.1021/la010992210.1021/la0109922 ↗
11. Seydack M (2005) Nanoparticle labels in immunosensing using optical detection methods. Biosens Bioelectron 20:2454–2469. doi: 10.1016/j.bios.2004.11.00310.1016/j.bios.2004.11.003 ↗
12. Sivestrini S, Riello P, Freris I, Cristofori D, Enrichi F, Benedetti A (2009) Structural and luminescence properties of europium(III)-doped zirconium carbonates and silica-supported Eu3+-doped zirconium carbonate nanoparticles. J Nanopart Res. doi: 10.1007/s11051-009-9655-510.1007/s11051-009-9655-5 ↗
13. Socrates G (2001) Infrared and Raman characteristic group frequencies. Tables and charts. Wiley, Chichester
14. Sokolov I, Kievsky YY, Kaszpurenko JM (2007) Self-assembly of ultrabright fluorescent silica particles. Small 3:419–423. doi: 10.1002/smll.20070023610.1002/smll.200600319 ↗
15. Stöber W, Fink A, Bohn E (1968) Controlled growth of monodisperse silica spheres in the micron size range. J Colloid Interf Sci 29:62–69. doi: 10.1016/0021-9797(68)90272-510.1016/0021-9797(68)90272-5 ↗
16. Tansil NC, Gao Z (2006) Nanoparticles in biomolecular detection. Nanotoday 1:28–37. doi: 10.1016/S1748-0132(06)70020-210.1016/S1748-0132(06)70020-2 ↗
17. Wang L, O’Donoghue MB, Tan W (2006) Nanoparticle for multiplex diagnostics and imaging. Nanomedicine 1:413–426. doi: 10.2217/17435889.1.4.41310.2217/17435889.1.4.413 ↗
18. Yuan J, Wang GJ (2005) Lanthanide complex-based fluorescence label for time-resolved fluorescence bioassay. Fluorescence 15:559–568. doi: 10.1007/s10895-005-2829-310.1007/s10895-005-2829-3 ↗