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Investigation on the structure and upconversion fluorescence of Yb3+/Ho3+ co-doped fluorapatite crystals for potential biomedical applications
Li, Xiyu1; Zhu, Jingxian2; Man, Zhentao2; Ao, Yingfang2; Chen, Haifeng1
刊名SCIENTIFIC REPORTS
2014-03-24
DOI10.1038/srep04446
4
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Multidisciplinary Sciences
研究领域[WOS]Science & Technology - Other Topics
关键词[WOS]IN-VIVO ; NANOPARTICLES ; HYDROXYAPATITE ; NANOPHOSPHORS ; NANOCRYSTALS ; LUMINESCENT ; EMISSION ; TRACKING ; STRATEGY ; CELLS
英文摘要

Rare-earth Yb3+ and Ho3+ co-doped fluorapatite (FA: Yb3+/Ho3+) crystals were prepared by hydrothermal synthesis, and their structure, upconversion properties, cell proliferation and imaging were investigated. The synthesized crystals, with a size of 16 by 286 nm, have a hexagonal crystal structure of classic FA and a Ca/Yb/Ho molar ratio of 100/16/2.1. Several reasonable Yb3+/Ho3+ -embedding lattice models along the fluorine channel of the FA crystal cell are proposed for the first time, such as models for (Ca7YbHo(C))(PO4)(6)F-2 and (Ca6YbHoNa2)(PO4)(6)F-2. The activated FA: Yb3+/Ho3+ crystals were found to exhibit distinct upconversion fluorescence. The 543-and 654-nm signals in the emission spectra could be assigned, respectively, to the 5F4 (5S2) -5I8 and 5F5 -5I8 transitions of holmium via 980-nm near-infrared excitation and the energy transfer of ytterbium. After the surfaces were grafted with hydrophilic dextran, the crystals displayed clear fluorescent cell imaging. Thus, the prepared novel FA: Yb3+/Ho3+ upconversion fluorescent crystals have potential applications in the biomedical field.

语种英语
WOS记录号WOS:000333239000006
项目编号2012CB933903
资助机构National Basic Research Program of China
引用统计
被引频次:35[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/63229
专题北京大学第三临床医学院_运动医学研究所
北京大学第三临床医学院_骨科
作者单位1.Peking Univ, Dept Biomed Engn, Coll Engn, Beijing 100871, Peoples R China
2.Peking Univ, Inst Sports Med, Hosp 3, Beijing 100191, Peoples R China
推荐引用方式
GB/T 7714
Li, Xiyu,Zhu, Jingxian,Man, Zhentao,et al. Investigation on the structure and upconversion fluorescence of Yb3+/Ho3+ co-doped fluorapatite crystals for potential biomedical applications[J]. SCIENTIFIC REPORTS,2014,4.
APA Li, Xiyu,Zhu, Jingxian,Man, Zhentao,Ao, Yingfang,&Chen, Haifeng.(2014).Investigation on the structure and upconversion fluorescence of Yb3+/Ho3+ co-doped fluorapatite crystals for potential biomedical applications.SCIENTIFIC REPORTS,4.
MLA Li, Xiyu,et al."Investigation on the structure and upconversion fluorescence of Yb3+/Ho3+ co-doped fluorapatite crystals for potential biomedical applications".SCIENTIFIC REPORTS 4(2014).
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