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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...

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Autores principales: Zhou, Na, Qiu, Peiy, Wang, Kan, Fu, Hualin, Gao, Guo, He, Rong, Cui, Daxiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2013
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.
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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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