Synthesis, luminescent and drug-release properties of $ SiO_{2} $$ Y_{2} $$ O_{3} $:Eu hollow mesoporous microspheres
Abstract $ SiO_{2} $$ Y_{2} $$ O_{3} $:Eu hollow mesoporous microspheres were prepared by coating luminescent $ Y_{2} $$ O_{3} $:$ Eu^{3+} $ particles onto uniform silica spheres using melamine formaldehyde microspheres as sacrificial templates. Various approaches including X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, thermogravimetric and differential thermal analysis, photoluminescence spectroscopy and $ N_{2} $ adsorption/desorption were used to characterize the samples. The results indicate that $ Y_{2} $$ O_{3} $:$ Eu^{3+} $ particles have been coated onto the hollow silica spheres with 300 nm thickness shell, and the composite microspheres exhibit mesoporous characteristics and have spherical morphology. Upon ultraviolet excitation, the composite shows the characteristic 5$ D_{0} $–7$ F_{1–4} $ red emission lines of $ Eu^{3+} $ even after loading of the model drug. In addition, drug release tests suggest that the composite has a controlled drug release property with ibuprofen as the model drug..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:22 |
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| Enthalten in: |
Journal of porous materials - 22(2015), 6 vom: 19. Juli, Seite 1511-1518 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Jiu, Hongfang [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Themen: |
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| Anmerkungen: |
© Springer Science+Business Media New York 2015 |
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| doi: |
10.1007/s10934-015-0033-7 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
OLC2043010654 |
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| 520 | |a Abstract $ SiO_{2} $$ Y_{2} $$ O_{3} $:Eu hollow mesoporous microspheres were prepared by coating luminescent $ Y_{2} $$ O_{3} $:$ Eu^{3+} $ particles onto uniform silica spheres using melamine formaldehyde microspheres as sacrificial templates. Various approaches including X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, thermogravimetric and differential thermal analysis, photoluminescence spectroscopy and $ N_{2} $ adsorption/desorption were used to characterize the samples. The results indicate that $ Y_{2} $$ O_{3} $:$ Eu^{3+} $ particles have been coated onto the hollow silica spheres with 300 nm thickness shell, and the composite microspheres exhibit mesoporous characteristics and have spherical morphology. Upon ultraviolet excitation, the composite shows the characteristic 5$ D_{0} $–7$ F_{1–4} $ red emission lines of $ Eu^{3+} $ even after loading of the model drug. In addition, drug release tests suggest that the composite has a controlled drug release property with ibuprofen as the model drug. | ||
| 650 | 4 | |a Y | |
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| 700 | 1 | |a Jia, Wanbao |4 aut | |
| 700 | 1 | |a Zhang, Lixin |4 aut | |
| 700 | 1 | |a Huang, Changshui |4 aut | |
| 700 | 1 | |a Jiao, Hongqian |4 aut | |
| 700 | 1 | |a Chang, Jianxia |4 aut | |
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