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Shape-controllable synthesis of hydrophilic NaLuF(4):Yb,Er nanocrystals by a surfactant-assistant two-phase system
Water-soluble upconversion nanoparticles (UCNPs) were prepared by a one-pot procedure in a two-phase reacting system. Four kinds of surfactants were tested in the synthesis process as capping agent to tune size and morphology of nanocrystals. Nanoparticles (approximately 70 nm) and rods (400 nm and...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4029583/ https://www.ncbi.nlm.nih.gov/pubmed/24314099 http://dx.doi.org/10.1186/1556-276X-8-518 |
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author | Zhou, Na Qiu, Peiy Wang, Kan Fu, Hualin Gao, Guo He, Rong Cui, Daxiang |
author_facet | Zhou, Na Qiu, Peiy Wang, Kan Fu, Hualin Gao, Guo He, Rong Cui, Daxiang |
author_sort | Zhou, Na |
collection | PubMed |
description | Water-soluble upconversion nanoparticles (UCNPs) were prepared by a one-pot procedure in a two-phase reacting system. Four kinds of surfactants were tested in the synthesis process as capping agent to tune size and morphology of nanocrystals. Nanoparticles (approximately 70 nm) and rods (400 nm and 2.5 μm) were synthesized, respectively. Then, Fourier transform infrared spectroscopy analysis confirmed the successful linking between UCNP surface and surfactant. Ionic liquids (ILs) and surfactants participated in synthesis process together, competing with each other to cap on UCNPs. ILs still led the competition of capping, while surfactants worked as cooperative assistants to develop functional surface. Further characterizations such as high-resolution transmission electron microscopy and X-ray diffraction indicated the changes in crystallization and phase transformation under the influence of surfactants. In addition, the growth mechanism of nanocrystals and upconversion fluorescence luminance was also investigated in detail. At last, the cytotoxicity of UCNPs was evaluated, which highly suggest that these surface-functionalized UCNPs are promising candidates for biomedical engineering. |
format | Online Article Text |
id | pubmed-4029583 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Springer |
record_format | MEDLINE/PubMed |
spelling | pubmed-40295832014-06-04 Shape-controllable synthesis of hydrophilic NaLuF(4):Yb,Er nanocrystals by a surfactant-assistant two-phase system Zhou, Na Qiu, Peiy Wang, Kan Fu, Hualin Gao, Guo He, Rong Cui, Daxiang Nanoscale Res Lett Nano Express Water-soluble upconversion nanoparticles (UCNPs) were prepared by a one-pot procedure in a two-phase reacting system. Four kinds of surfactants were tested in the synthesis process as capping agent to tune size and morphology of nanocrystals. Nanoparticles (approximately 70 nm) and rods (400 nm and 2.5 μm) were synthesized, respectively. Then, Fourier transform infrared spectroscopy analysis confirmed the successful linking between UCNP surface and surfactant. Ionic liquids (ILs) and surfactants participated in synthesis process together, competing with each other to cap on UCNPs. ILs still led the competition of capping, while surfactants worked as cooperative assistants to develop functional surface. Further characterizations such as high-resolution transmission electron microscopy and X-ray diffraction indicated the changes in crystallization and phase transformation under the influence of surfactants. In addition, the growth mechanism of nanocrystals and upconversion fluorescence luminance was also investigated in detail. At last, the cytotoxicity of UCNPs was evaluated, which highly suggest that these surface-functionalized UCNPs are promising candidates for biomedical engineering. Springer 2013-12-06 /pmc/articles/PMC4029583/ /pubmed/24314099 http://dx.doi.org/10.1186/1556-276X-8-518 Text en Copyright © 2013 Zhou et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Nano Express Zhou, Na Qiu, Peiy Wang, Kan Fu, Hualin Gao, Guo He, Rong Cui, Daxiang Shape-controllable synthesis of hydrophilic NaLuF(4):Yb,Er nanocrystals by a surfactant-assistant two-phase system |
title | Shape-controllable synthesis of hydrophilic NaLuF(4):Yb,Er nanocrystals by a surfactant-assistant two-phase system |
title_full | Shape-controllable synthesis of hydrophilic NaLuF(4):Yb,Er nanocrystals by a surfactant-assistant two-phase system |
title_fullStr | Shape-controllable synthesis of hydrophilic NaLuF(4):Yb,Er nanocrystals by a surfactant-assistant two-phase system |
title_full_unstemmed | Shape-controllable synthesis of hydrophilic NaLuF(4):Yb,Er nanocrystals by a surfactant-assistant two-phase system |
title_short | Shape-controllable synthesis of hydrophilic NaLuF(4):Yb,Er nanocrystals by a surfactant-assistant two-phase system |
title_sort | shape-controllable synthesis of hydrophilic naluf(4):yb,er nanocrystals by a surfactant-assistant two-phase system |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4029583/ https://www.ncbi.nlm.nih.gov/pubmed/24314099 http://dx.doi.org/10.1186/1556-276X-8-518 |
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